Use relative URLs in development docs

This is part of https://gitlab.com/gitlab-org/gitlab-ce/issues/61945

21 files changed, 111 insertions, 112 deletions

diff --git a/doc/development/architecture.md b/doc/development/architecture.md
index 60446ffaf15..930e0e7d676 100644
--- a/doc/development/architecture.md
+++ b/doc/development/architecture.md
@@ -106,21 +106,21 @@ Component statuses are linked to configuration documentation for each component.
 
 ### Component list
 
-| Component | Description | [Omnibus GitLab](https://docs.gitlab.com/omnibus/README.html) | [GitLab chart](https://docs.gitlab.com/charts/) | [Minikube Minimal](https://docs.gitlab.com/charts/development/minikube/#deploying-gitlab-with-minimal-settings) | [GitLab.com](https://gitlab.com) | [Source](https://docs.gitlab.com/ee/install/installation.html) | [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit) | CE/EE |
+| Component | Description | [Omnibus GitLab](https://docs.gitlab.com/omnibus/) | [GitLab chart](https://docs.gitlab.com/charts/) | [Minikube Minimal](https://docs.gitlab.com/charts/development/minikube/#deploying-gitlab-with-minimal-settings) | [GitLab.com](https://gitlab.com) | [Source](../install/installation.md) | [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit) | CE/EE |
 | --------- | ----------- |:--------------------:|:------------------:|:-----:|:--------:|:--------:|:-------:|:-------:|
 | [NGINX](#nginx) | Routes requests to appropriate components, terminates SSL | [✅][nginx-omnibus] | [✅][nginx-charts] | [⚙][nginx-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#service-architecture) | [⤓][nginx-source] | ❌ | CE & EE |
-| [Unicorn (GitLab Rails)](#unicorn) | Handles requests for the web interface and API | [✅][unicorn-omnibus] | [✅][unicorn-charts] | [✅][unicorn-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#unicorn) | [⚙][unicorn-source] | [✅][gitlab-yml] | CE & EE |
-| [Sidekiq](#sidekiq) | Background jobs processor | [✅][sidekiq-omnibus] | [✅][sidekiq-charts] | [✅](https://docs.gitlab.com/charts/charts/gitlab/sidekiq/index.html) | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#sidekiq) | [✅][gitlab-yml] | [✅][gitlab-yml] | CE & EE |
+| [Unicorn (GitLab Rails)](#unicorn) | Handles requests for the web interface and API | [✅][unicorn-omnibus] | [✅][unicorn-charts] | [✅][unicorn-charts] | [✅](../user/gitlab_com/index.md#unicorn) | [⚙][unicorn-source] | [✅][gitlab-yml] | CE & EE |
+| [Sidekiq](#sidekiq) | Background jobs processor | [✅][sidekiq-omnibus] | [✅][sidekiq-charts] | [✅](https://docs.gitlab.com/charts/charts/gitlab/sidekiq/index.html) | [✅](../user/gitlab_com/index.md#sidekiq) | [✅][gitlab-yml] | [✅][gitlab-yml] | CE & EE |
 | [Gitaly](#gitaly) | Git RPC service for handling all git calls made by GitLab | [✅][gitaly-omnibus] | [✅][gitaly-charts] | [✅][gitaly-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#service-architecture) | [⚙][gitaly-source] | ✅ | CE & EE |
 | [GitLab Workhorse](#gitlab-workhorse) | Smart reverse proxy, handles large HTTP requests | [✅][workhorse-omnibus] | [✅][workhorse-charts] | [✅][workhorse-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#service-architecture) | [⚙][workhorse-source] | ✅ | CE & EE |
 | [GitLab Shell](#gitlab-shell) | Handles `git` over SSH sessions | [✅][shell-omnibus] | [✅][shell-charts] | [✅][shell-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#service-architecture) | [⚙][shell-source] | [✅][gitlab-yml] | CE & EE |
-| [GitLab Pages](#gitlab-pages) | Hosts static websites | [⚙][pages-omnibus] | [❌][pages-charts] | [❌][pages-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#gitlab-pages) | [⚙][pages-source] | [⚙][pages-gdk] | CE & EE  |
-| [Registry](#registry) | Container registry, allows pushing and pulling of images | [⚙][registry-omnibus] | [✅][registry-charts] | [✅][registry-charts] | [✅](https://docs.gitlab.com/ee/user/project/container_registry.html#build-and-push-images) | [⤓][registry-source] | [⚙][registry-gdk] | CE & EE  |
+| [GitLab Pages](#gitlab-pages) | Hosts static websites | [⚙][pages-omnibus] | [❌][pages-charts] | [❌][pages-charts] | [✅](../user/gitlab_com/index.md#gitlab-pages) | [⚙][pages-source] | [⚙][pages-gdk] | CE & EE  |
+| [Registry](#registry) | Container registry, allows pushing and pulling of images | [⚙][registry-omnibus] | [✅][registry-charts] | [✅][registry-charts] | [✅](../user/project/container_registry.md#build-and-push-images) | [⤓][registry-source] | [⚙][registry-gdk] | CE & EE  |
 | [Redis](#redis) | Caching service | [✅][redis-omnibus] | [✅][redis-omnibus] | [✅][redis-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#service-architecture) | [⤓][redis-source] | ✅ | CE & EE |
-| [PostgreSQL](#postgresql) | Database | [✅][postgres-omnibus] | [✅][postgres-charts] | [✅][postgres-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#postgresql) | [⤓][postgres-source] | ✅ | CE & EE |
+| [PostgreSQL](#postgresql) | Database | [✅][postgres-omnibus] | [✅][postgres-charts] | [✅][postgres-charts] | [✅](../user/gitlab_com/index.md#postgresql) | [⤓][postgres-source] | ✅ | CE & EE |
 | [PgBouncer](#pgbouncer) | Database connection pooling, failover | [⚙][pgbouncer-omnibus] | [❌][pgbouncer-charts] | [❌][pgbouncer-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#database-architecture) | ❌ | ❌ | EE Only |
-| [Consul](#consul) | Database node discovery, failover | [⚙][consul-omnibus] | [❌][consul-charts] | [❌][consul-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#consul) | ❌ | ❌ | EE Only |
-| [GitLab self-monitoring: Prometheus](#prometheus) | Time-series database, metrics collection, and query service | [✅][prometheus-omnibus] | [✅][prometheus-charts] | [⚙][prometheus-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#prometheus) | ❌ | ❌ | CE & EE |
+| [Consul](#consul) | Database node discovery, failover | [⚙][consul-omnibus] | [❌][consul-charts] | [❌][consul-charts] | [✅](../user/gitlab_com/index.md#consul) | ❌ | ❌ | EE Only |
+| [GitLab self-monitoring: Prometheus](#prometheus) | Time-series database, metrics collection, and query service | [✅][prometheus-omnibus] | [✅][prometheus-charts] | [⚙][prometheus-charts] | [✅](../user/gitlab_com/index.md#prometheus) | ❌ | ❌ | CE & EE |
 | [GitLab self-monitoring: Alertmanager](#alertmanager) | Deduplicates, groups, and routes alerts from Prometheus | [✅][alertmanager-omnibus] | [✅][alertmanager-charts] |  [⚙][alertmanager-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
 | [GitLab self-monitoring: Grafana](#grafana) | Metrics dashboard | [⚙][grafana-omnibus] | [⤓][grafana-charts] |  [⤓][grafana-charts] | [✅](https://dashboards.gitlab.com/d/RZmbBr7mk/gitlab-triage?refresh=30s) | ❌ | ❌ | CE & EE |
 | [GitLab self-monitoring: Sentry](#sentry) | Track errors generated by the GitLab instance | [⤓][sentry-omnibus] | [❌][sentry-charts] | [❌][sentry-charts] | [✅](https://about.gitlab.com/handbook/support/workflows/services/gitlab_com/500_errors.html#searching-sentry) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
@@ -130,15 +130,15 @@ Component statuses are linked to configuration documentation for each component.
 | [PgBouncer Exporter](#pgbouncer-exporter) | Prometheus endpoint with PgBouncer metrics | [⚙][pgbouncer-exporter-omnibus] | [❌][pgbouncer-exporter-charts] | [❌][pgbouncer-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
 | [GitLab Monitor](#gitlab-monitor) | Generates a variety of GitLab metrics | [✅][gitlab-monitor-omnibus] | [❌][gitab-monitor-charts] | [❌][gitab-monitor-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
 | [Node Exporter](#node-exporter) | Prometheus endpoint with system metrics | [✅][node-exporter-omnibus] | [❌][node-exporter-charts] | [❌][node-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [Mattermost](#mattermost) | Open-source Slack alternative | [⚙][mattermost-omnibus] | [⤓][mattermost-charts] | [⤓][mattermost-charts] | [⤓](https://docs.gitlab.com/ee/user/project/integrations/mattermost_slash_commands.html#manual-configuration), [⤓](https://docs.gitlab.com/ee/user/project/integrations/mattermost.html) | ❌ | ❌ | CE & EE |
+| [Mattermost](#mattermost) | Open-source Slack alternative | [⚙][mattermost-omnibus] | [⤓][mattermost-charts] | [⤓][mattermost-charts] | [⤓](../user/project/integrations/mattermost_slash_commands.md#manual-configuration), [⤓](../user/project/integrations/mattermost.html) | ❌ | ❌ | CE & EE |
 | [MinIO](#minio) | Object storage service | [⤓][minio-omnibus] | [✅][minio-charts] | [✅][minio-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#storage-architecture) | ❌ | [⚙][minio-gdk] | CE & EE |
-| [Runner](#gitlab-runner) | Executes GitLab CI jobs | [⤓][runner-omnibus] | [✅][runner-charts] | [⚙][runner-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#shared-runners) | [⚙][runner-source] | [⚙][runner-gdk] | CE & EE |
+| [Runner](#gitlab-runner) | Executes GitLab CI jobs | [⤓][runner-omnibus] | [✅][runner-charts] | [⚙][runner-charts] | [✅](../user/gitlab_com/index.md#shared-runners) | [⚙][runner-source] | [⚙][runner-gdk] | CE & EE |
 | [Database Migrations](#database-migrations) | Database migrations | [✅][database-migrations-omnibus] | [✅][database-migrations-charts] | [✅][database-migrations-charts] | ✅ | [⚙][database-migrations-source] | ✅ | CE & EE |
 | [Certificate Management](#certificate-management) | TLS Settings, Let's Encrypt | [✅][certificate-management-omnibus] | [✅][certificate-management-charts] | [⚙][certificate-management-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production-architecture/#secrets-management) | [⚙][certificate-management-source] | [⚙][certificate-management-gdk] | CE & EE |
 | [GitLab Geo Node](#gitlab-geo) | Geographically distributed GitLab nodes | [⚙][geo-omnibus] | [❌][geo-charts] | [❌][geo-charts] | ✅ | [❌](../administration/geo/replication/configuration_source.md) | [⚙][geo-gdk] | EE Only |
 | [LDAP Authentication](#ldap-authentication) | Authenticate users against centralized LDAP directory | [⤓][ldap-omnibus] | [⤓][ldap-charts] | [⤓][ldap-charts] | [❌](https://about.gitlab.com/pricing/#gitlab-com) | [⤓][gitlab-yml] | [⤓][ldap-gdk] | CE & EE |
-| [Outbound email (SMTP)](#outbound-email) | Send email messages to users | [⤓][outbound-email-omnibus] | [⤓][outbound-email-charts] | [⤓][outbound-email-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#mail-configuration) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
-| [Inbound email (SMTP)](#inbound-email) | Receive messages to update issues | [⤓][inbound-email-omnibus] | [⤓][inbound-email-charts] | [⤓][inbound-email-charts] | [✅](https://docs.gitlab.com/ee/user/gitlab_com/#mail-configuration) | [⤓][gitlab-yml] | [⤓][gitlab-yml] |  CE & EE |
+| [Outbound email (SMTP)](#outbound-email) | Send email messages to users | [⤓][outbound-email-omnibus] | [⤓][outbound-email-charts] | [⤓][outbound-email-charts] | [✅](../user/gitlab_com/index.md#mail-configuration) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
+| [Inbound email (SMTP)](#inbound-email) | Receive messages to update issues | [⤓][inbound-email-omnibus] | [⤓][inbound-email-charts] | [⤓][inbound-email-charts] | [✅](../user/gitlab_com/index.md#mail-configuration) | [⤓][gitlab-yml] | [⤓][gitlab-yml] |  CE & EE |
 | [ElasticSearch](#elasticsearch) | Improved search within GitLab | [⤓][elasticsearch-omnibus] | [⤓][elasticsearch-charts] | [⤓][elasticsearch-charts] | [❌](https://gitlab.com/groups/gitlab-org/-/epics/153) | [⤓][elasticsearch-source] | [⤓][elasticsearch-gdk] | EE Only |
 | [Sentry integration](#sentry) | Error tracking for deployed apps | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | CE & EE |
 | [Jaeger integration](#jaeger) | Distributed tracing for deployed apps | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | EE Only |
@@ -440,7 +440,7 @@ Sidekiq is a Ruby background job processor that pulls jobs from the redis queue
 - Configuration: [Omnibus][managed-k8s-apps], [Charts][managed-k8s-apps], [Source][managed-k8s-apps], [GDK][managed-k8s-apps]
 - Layer: Core Service (Processor)
 
-GitLab provides [GitLab Managed Apps](https://docs.gitlab.com/ee/user/project/clusters/#installing-applications), a one-click install for various applications which can be added directly to your configured cluster. These applications are needed for Review Apps and deployments when using Auto DevOps. You can install them after you create a cluster.
+GitLab provides [GitLab Managed Apps](../user/project/clusters/index.md#installing-applications), a one-click install for various applications which can be added directly to your configured cluster. These applications are needed for Review Apps and deployments when using Auto DevOps. You can install them after you create a cluster.
 
 ## GitLab by Request Type
 
@@ -609,92 +609,92 @@ We've also detailed [our architecture of GitLab.com](https://about.gitlab.com/ha
 
 [alertmanager-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
 [alertmanager-charts]: https://github.com/helm/charts/tree/master/stable/prometheus
-[nginx-omnibus]: https://docs.gitlab.com/omnibus/settings/nginx.html
-[nginx-charts]: https://docs.gitlab.com/charts/charts/nginx/index.html
-[nginx-source]: https://docs.gitlab.com/ee/install/installation.html#9-nginx
+[nginx-omnibus]: https://docs.gitlab.com/omnibus/settings/
+[nginx-charts]: https://docs.gitlab.com/charts/charts/nginx/
+[nginx-source]: ../install/installation.md#9-nginx
 [unicorn-omnibus]: https://docs.gitlab.com/omnibus/settings/unicorn.html
-[unicorn-charts]: https://docs.gitlab.com/charts/charts/gitlab/unicorn/index.html
-[unicorn-source]: https://docs.gitlab.com/ee/install/installation.html#configure-it
+[unicorn-charts]: https://docs.gitlab.com/charts/charts/gitlab/unicorn/
+[unicorn-source]: ../install/installation.md#configure-it
 [gitlab-yml]: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/config/gitlab.yml.example
 [sidekiq-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[sidekiq-charts]: https://docs.gitlab.com/charts/charts/gitlab/sidekiq/index.html
-[gitaly-omnibus]: https://docs.gitlab.com/ee/administration/gitaly/
-[gitaly-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitaly/index.html
-[gitaly-source]: https://docs.gitlab.com/ee/install/installation.html#install-gitaly
+[sidekiq-charts]: https://docs.gitlab.com/charts/charts/gitlab/sidekiq/
+[gitaly-omnibus]: ../administration/gitaly/index.md
+[gitaly-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitaly/
+[gitaly-source]: ../install/installation.md#install-gitaly
 [workhorse-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[workhorse-charts]: https://docs.gitlab.com/charts/charts/gitlab/unicorn/index.html
-[workhorse-source]: https://docs.gitlab.com/ee/install/installation.html#install-gitlab-workhorse
+[workhorse-charts]: https://docs.gitlab.com/charts/charts/gitlab/unicorn/
+[workhorse-source]: ../install/installation.md#install-gitlab-workhorse
 [shell-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[shell-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitlab-shell/index.html
-[shell-source]: https://docs.gitlab.com/ee/install/installation.html#install-gitlab-shell
-[pages-omnibus]: https://docs.gitlab.com/ee/administration/pages/
+[shell-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitlab-shell/
+[shell-source]: ../install/installation.md#install-gitlab-shell
+[pages-omnibus]: ../administration/pages/index.md
 [pages-charts]: https://gitlab.com/charts/gitlab/issues/37
-[pages-source]: https://docs.gitlab.com/ee/install/installation.html#install-gitlab-pages
+[pages-source]: ../install/installation.md#install-gitlab-pages
 [pages-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/pages.md
-[registry-omnibus]: https://docs.gitlab.com/ee/administration/container_registry.html#container-registry-domain-configuration
-[registry-charts]: https://docs.gitlab.com/charts/charts/registry/index.html
-[registry-source]: https://docs.gitlab.com/ee/administration/container_registry.html#enable-the-container-registry
+[registry-omnibus]: ../administration/container_registry.md#container-registry-domain-configuration
+[registry-charts]: https://docs.gitlab.com/charts/charts/registry/
+[registry-source]: ../administration/container_registry.md#enable-the-container-registry
 [registry-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/registry.md
 [redis-omnibus]: https://docs.gitlab.com/omnibus/settings/redis.html
-[redis-charts]: https://docs.gitlab.com/charts/charts/redis/index.html
-[redis-source]: https://docs.gitlab.com/ee/install/installation.html#7-redis
+[redis-charts]: https://docs.gitlab.com/charts/charts/redis/
+[redis-source]: ../install/installation.md#7-redis
 [postgres-omnibus]: https://docs.gitlab.com/omnibus/settings/database.html
 [postgres-charts]: https://github.com/helm/charts/tree/master/stable/postgresql
-[postgres-source]: https://docs.gitlab.com/ee/install/installation.html#6-database
-[pgbouncer-omnibus]: https://docs.gitlab.com/ee/administration/high_availability/pgbouncer.html
+[postgres-source]: ../install/installation.md#6-database
+[pgbouncer-omnibus]: ../administration/high_availability/pgbouncer.md
 [pgbouncer-charts]: https://docs.gitlab.com/charts/installation/deployment.html#postgresql
-[consul-omnibus]: https://docs.gitlab.com/ee/administration/high_availability/consul.html
+[consul-omnibus]: ../administration/high_availability/consul.md
 [consul-charts]: https://docs.gitlab.com/charts/installation/deployment.html#postgresql
-[prometheus-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/prometheus/
+[prometheus-omnibus]: ../administration/monitoring/prometheus/index.md
 [prometheus-charts]: https://github.com/helm/charts/tree/master/stable/prometheus
-[grafana-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/performance/grafana_configuration.html
+[grafana-omnibus]: ../administration/monitoring/performance/grafana_configuration.md
 [grafana-charts]: https://github.com/helm/charts/tree/master/stable/grafana
 [sentry-omnibus]: https://docs.gitlab.com/omnibus/settings/configuration.html#error-reporting-and-logging-with-sentry
 [sentry-charts]: https://gitlab.com/charts/gitlab/issues/1319
 [jaeger-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4104
 [jaeger-charts]: https://gitlab.com/charts/gitlab/issues/1320
-[jaeger-source]: https://docs.gitlab.com/ee/development/distributed_tracing.html#enabling-distributed-tracing
-[jaeger-gdk]: https://docs.gitlab.com/ee/development/distributed_tracing.html#using-jaeger-in-the-gitlab-development-kit
-[redis-exporter-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/prometheus/redis_exporter.html
-[redis-exporter-charts]: https://docs.gitlab.com/charts/charts/redis/index.html
-[postgres-exporter-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/prometheus/postgres_exporter.html
+[jaeger-source]: ../development/distributed_tracing.md#enabling-distributed-tracing
+[jaeger-gdk]: ../development/distributed_tracing.html#using-jaeger-in-the-gitlab-development-kit
+[redis-exporter-omnibus]: ../administration/monitoring/prometheus/redis_exporter.md
+[redis-exporter-charts]: https://docs.gitlab.com/charts/charts/redis/
+[postgres-exporter-omnibus]: ../administration/monitoring/prometheus/postgres_exporter.md
 [postgres-exporter-charts]: https://github.com/helm/charts/tree/master/stable/postgresql
-[pgbouncer-exporter-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/prometheus/pgbouncer_exporter.html
+[pgbouncer-exporter-omnibus]: ../administration/monitoring/prometheus/pgbouncer_exporter.md
 [pgbouncer-exporter-charts]: https://docs.gitlab.com/charts/installation/deployment.html#postgresql
-[gitlab-monitor-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/prometheus/gitlab_monitor_exporter.html
+[gitlab-monitor-omnibus]: ../administration/monitoring/prometheus/gitlab_monitor_exporter.md
 [gitab-monitor-charts]: https://gitlab.com/charts/gitlab/issues/319
-[node-exporter-omnibus]: https://docs.gitlab.com/ee/administration/monitoring/prometheus/node_exporter.html
+[node-exporter-omnibus]: ../administration/monitoring/prometheus/node_exporter.md
 [node-exporter-charts]: https://gitlab.com/charts/gitlab/issues/1332
 [mattermost-omnibus]: https://docs.gitlab.com/omnibus/gitlab-mattermost/
 [mattermost-charts]: https://docs.mattermost.com/install/install-mmte-helm-gitlab-helm.html
 [minio-omnibus]: https://min.io/download
-[minio-charts]: https://docs.gitlab.com/charts/charts/minio/index.html
+[minio-charts]: https://docs.gitlab.com/charts/charts/minio/
 [minio-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/object_storage.md
 [runner-omnibus]: https://docs.gitlab.com/runner/
 [runner-charts]: https://docs.gitlab.com/runner/install/kubernetes.html
 [runner-source]: https://docs.gitlab.com/runner/
 [runner-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/runner.md
 [database-migrations-omnibus]: https://docs.gitlab.com/omnibus/settings/database.html#disabling-automatic-database-migration
-[database-migrations-charts]: https://docs.gitlab.com/charts/charts/gitlab/migrations/index.html
-[database-migrations-source]: https://docs.gitlab.com/ee/update/upgrading_from_source.html#13-install-libs-migrations-etc
+[database-migrations-charts]: https://docs.gitlab.com/charts/charts/gitlab/migrations/
+[database-migrations-source]: ../update/upgrading_from_source.md#13-install-libs-migrations-etc
 [certificate-management-omnibus]: https://docs.gitlab.com/omnibus/settings/ssl.html
 [certificate-management-charts]: https://docs.gitlab.com/charts/installation/tls.html
-[certificate-management-source]: https://docs.gitlab.com/ee/install/installation.html#using-https
+[certificate-management-source]: ../install/installation.md#using-https
 [certificate-management-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/https.md
-[geo-omnibus]: https://docs.gitlab.com/ee/administration/geo/replication/index.html#setup-instructions
+[geo-omnibus]: ../administration/geo/replication/index.md#setup-instructions
 [geo-charts]: https://gitlab.com/charts/gitlab/issues/8
 [geo-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/geo.md
-[ldap-omnibus]: https://docs.gitlab.com/ee/administration/auth/ldap.html
+[ldap-omnibus]: ../administration/auth/ldap.md
 [ldap-charts]: https://docs.gitlab.com/charts/charts/globals.html#ldap
 [ldap-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/ldap.md
 [outbound-email-omnibus]: https://docs.gitlab.com/omnibus/settings/smtp.html
 [outbound-email-charts]: https://docs.gitlab.com/charts/installation/command-line-options.html#outgoing-email-configuration
-[inbound-email-omnibus]: https://docs.gitlab.com/ee/administration/incoming_email.html
+[inbound-email-omnibus]: ../administration/incoming_email.md
 [inbound-email-charts]: https://docs.gitlab.com/charts/installation/command-line-options.html#incoming-email-configuration
-[elasticsearch-omnibus]: https://docs.gitlab.com/ee/integration/elasticsearch.html
-[elasticsearch-charts]: https://docs.gitlab.com/ee/integration/elasticsearch.html
-[elasticsearch-source]: https://docs.gitlab.com/ee/integration/elasticsearch.html
+[elasticsearch-omnibus]: ../integration/elasticsearch.md
+[elasticsearch-charts]: ../integration/elasticsearch.md
+[elasticsearch-source]: ../integration/elasticsearch.md
 [elasticsearch-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/elasticsearch.md
-[sentry-integration]: https://docs.gitlab.com/ee/user/project/operations/error_tracking.html
-[jaeger-integration]: https://docs.gitlab.com/ee/user/project/operations/tracing.html
-[managed-k8s-apps]: https://docs.gitlab.com/ee/user/project/clusters/#installing-applications
+[sentry-integration]: ../user/project/operations/error_tracking.md
+[jaeger-integration]: ../user/project/operations/tracing.md
+[managed-k8s-apps]: ../user/project/clusters/index.md#installing-applications
diff --git a/doc/development/code_review.md b/doc/development/code_review.md
index c4e5995714d..29e2aa1a581 100644
--- a/doc/development/code_review.md
+++ b/doc/development/code_review.md
@@ -27,7 +27,7 @@ Depending on the areas your merge request touches, it must be **approved** by on
 or more [maintainers](https://about.gitlab.com/handbook/engineering/workflow/code-review/#maintainer):
 
 For approvals, we use the approval functionality found in the merge request
-widget. Reviewers can add their approval by [approving additionally](https://docs.gitlab.com/ee/user/project/merge_requests/merge_request_approvals.html#adding-or-removing-an-approval).
+widget. Reviewers can add their approval by [approving additionally](../user/project/merge_requests/merge_request_approvals.md#adding-or-removing-an-approval).
 
 Getting your merge request **merged** also requires a maintainer. If it requires
 more than one approval, the last maintainer to review and approve it will also merge it.
@@ -43,7 +43,7 @@ It picks reviewers and maintainers from the list at the
 [engineering projects](https://about.gitlab.com/handbook/engineering/projects/)
 page, with these behaviours:
 
-1. It will not pick people whose [GitLab status](../user/profile/#current-status)
+1. It will not pick people whose [GitLab status](../user/profile/index.md#current-status)
    contains the string 'OOO'.
 2. [Trainee maintainers](https://about.gitlab.com/handbook/engineering/workflow/code-review/#trainee-maintainer)
    are three times as likely to be picked as other reviewers.
@@ -152,7 +152,7 @@ required approvers.
 
 Maintainers must check before merging if the merge request is introducing new
 vulnerabilities, by inspecting the list in the Merge Request [Security
-Widget](https://docs.gitlab.com/ee/user/project/merge_requests/#security-reports-ultimate).
+Widget](../user/project/merge_requests/index.md#security-reports-ultimate).
 When in doubt, a [Security Engineer][team] can be involved. The list of detected
 vulnerabilities must be either empty or containing:
 
@@ -286,7 +286,7 @@ experience, refactors the existing code). Then:
   author has already set this option or if the merge request clearly contains a
   messy commit history that is intended to be squashed.
 
-[squash-and-merge]: https://docs.gitlab.com/ee/user/project/merge_requests/squash_and_merge.html#squash-and-merge
+[squash-and-merge]: ../user/project/merge_requests/squash_and_merge.md#squash-and-merge
 
 ### The right balance
 
@@ -319,7 +319,7 @@ reviewee.
 GitLab is used in a lot of places. Many users use
 our [Omnibus packages](https://about.gitlab.com/installation/), but some use
 the [Docker images](https://docs.gitlab.com/omnibus/docker/), some are
-[installed from source](https://docs.gitlab.com/ce/install/installation.html),
+[installed from source](../install/installation.md),
 and there are other installation methods available. GitLab.com itself is a large
 Enterprise Edition instance. This has some implications:
 
diff --git a/doc/development/distributed_tracing.md b/doc/development/distributed_tracing.md
index 038e3de10d7..bfce7488a8d 100644
--- a/doc/development/distributed_tracing.md
+++ b/doc/development/distributed_tracing.md
@@ -34,7 +34,7 @@ GITLAB_TRACING=opentracing://<driver>?<param_name>=<param_value>&<param_name_2>=
 In this example, we have the following hypothetical values:
 
 - `driver`: the driver. [GitLab supports
-  `jaeger`](https://docs.gitlab.com/ee/user/project/operations/tracing.html). In future, other
+  `jaeger`](../user/project/operations/tracing.md). In future, other
   tracing implementations may also be supported.
 - `param_name`, `param_value`: these are driver specific configuration values. Configuration
   parameters for Jaeger are documented [further on in this
diff --git a/doc/development/documentation/feature-change-workflow.md b/doc/development/documentation/feature-change-workflow.md
index 1f68b6a6a70..ca29353ecbe 100644
--- a/doc/development/documentation/feature-change-workflow.md
+++ b/doc/development/documentation/feature-change-workflow.md
@@ -86,7 +86,7 @@ Everyone is encouraged to draft the requirements in the issue, but a product man
 do the following:
 
 - When the issue is assigned a release milestone, review and update the Documentation details.
-- By the kickoff, finalizie the Documentation details.
+- By the kickoff, finalize the Documentation details.
 
 ### Developer and maintainer roles
 
@@ -117,7 +117,7 @@ Follow the process below unless otherwise agreed with the product manager and te
 
 #### Reviews and merging
 
-All reviewers can help ensure accuracy, clarity, completeness, and adherence to the plans in the issue, as well as the [Documentation Guidelines](https://docs.gitlab.com/ee/development/documentation/) and [Style Guide](https://docs.gitlab.com/ee/development/documentation/styleguide.html).
+All reviewers can help ensure accuracy, clarity, completeness, and adherence to the plans in the issue, as well as the [Documentation Guidelines](index.md) and [Style Guide](styleguide.md).
 
 - **Prior to merging**, documentation changes committed by the developer must be reviewed by:
 
@@ -136,7 +136,7 @@ All reviewers can help ensure accuracy, clarity, completeness, and adherence to
    1. **The maintainer** who is assigned to merge the MR, to verify clarity, completeness, and quality, to the best of their ability.
 
 - Upon merging, if a technical writer review has not been performed and there is not yet a linked issue for a follow-up review, the maintainer should [create an issue using the Doc Review template](https://gitlab.com/gitlab-org/gitlab-ce/issues/new?issuable_template=Doc%20Review), link it from the MR, and
-  mention the original MR author in the new issue. Alternatively, the mainitainer can ask the MR author to create and link this issue before the MR is merged.
+  mention the original MR author in the new issue. Alternatively, the maintainer can ask the MR author to create and link this issue before the MR is merged.
 
 - After merging, documentation changes are reviewed by:
 
@@ -157,14 +157,14 @@ All reviewers can help ensure accuracy, clarity, completeness, and adherence to
 #### Collaboration
 
 By default, the developer will work on documentation changes independently, but
-the developer, PM, or technicial writer can propose a broader collaboration for
+the developer, PM, or technical writer can propose a broader collaboration for
 any given issue.
 
 Additionally, technical writers are available for questions at any time.
 
 #### Review
 
-- Techncial writers provide non-blocking reviews of all documentation changes,
+- Technical writers provide non-blocking reviews of all documentation changes,
   before or after the change is merged. However, if the docs are ready in the MR while
   there's time before the freeze, the technical writer's review can commence early, on request.
 - The technical writer will confirm that the doc is clear, grammatically correct,
@@ -173,7 +173,7 @@ Additionally, technical writers are available for questions at any time.
   the developer and code reviewer should have already made a good-faith effort to ensure:
   - Clarity.
   - Adherence to the plans and goals in the issue.
-  - Location (make sure the docs are in the correct directorkes and has the correct name).
+  - Location (make sure the docs are in the correct directories and has the correct name).
   - Syntax, typos, and broken links.
   - Improvements to the content.
   - Accordance with the [Documentation Style Guide](styleguide.md), and [Structure and Template](structure.md) doc.
diff --git a/doc/development/documentation/index.md b/doc/development/documentation/index.md
index 4bf8401c0e8..6dfd3b2a690 100644
--- a/doc/development/documentation/index.md
+++ b/doc/development/documentation/index.md
@@ -466,7 +466,7 @@ If you want to know the in-depth details, here's what's really happening:
 The following GitLab features are used among others:
 
 - [Manual actions](../../ci/yaml/README.md#whenmanual)
-- [Multi project pipelines](https://docs.gitlab.com/ee/ci/multi_project_pipeline_graphs.html)
+- [Multi project pipelines](../../ci/multi_project_pipeline_graphs.md)
 - [Review Apps](../../ci/review_apps/index.md)
 - [Artifacts](../../ci/yaml/README.md#artifacts)
 - [Specific Runner](../../ci/runners/README.md#locking-a-specific-runner-from-being-enabled-for-other-projects)
diff --git a/doc/development/documentation/structure.md b/doc/development/documentation/structure.md
index 95b5fcd99a1..fe676efa94d 100644
--- a/doc/development/documentation/structure.md
+++ b/doc/development/documentation/structure.md
@@ -77,8 +77,8 @@ for use (e.g. variations on the main use case), but if that's not applicable, th
 Examples of use cases on feature pages:
 - CE and EE: [Issues](../../user/project/issues/index.md#use-cases)
 - CE and EE: [Merge Requests](../../user/project/merge_requests/index.md)
-- EE-only: [Geo](https://docs.gitlab.com/ee/administration/geo/replication/index.html)
-- EE-only: [Jenkins integration](https://docs.gitlab.com/ee/integration/jenkins.html)
+- EE-only: [Geo](../../administration/geo/replication/index.md)
+- EE-only: [Jenkins integration](../../integration/jenkins.md)
 
 ## Requirements
 
@@ -121,8 +121,8 @@ but commented out to help encourage others to add to it in the future. -->
 
 Notes:
 
-- (1): Apply the [tier badges](https://docs.gitlab.com/ee/development/documentation/styleguide.html#product-badges) accordingly
-- (2): Apply the correct format for the [GitLab version introducing the feature](https://docs.gitlab.com/ee/development/documentation/styleguide.html#gitlab-versions-and-tiers)
+- (1): Apply the [tier badges](styleguide.md#product-badges) accordingly
+- (2): Apply the correct format for the [GitLab version introducing the feature](styleguide.md#gitlab-versions-and-tiers)
 ```
 
 ## Help and feedback section
diff --git a/doc/development/ee_features.md b/doc/development/ee_features.md
index bc472bb5b0a..485d69fc997 100644
--- a/doc/development/ee_features.md
+++ b/doc/development/ee_features.md
@@ -933,7 +933,7 @@ export default {
 ```
 
 #### For JS code that is EE only, like props, computed properties, methods, etc, we will keep the current approach
- - Since we [can't async load a mixin](https://github.com/vuejs/vue-loader/issues/418#issuecomment-254032223) we will use the [`ee_else_ce`](https://docs.gitlab.com/ee/development/ee_features.html#javascript-code-in-assetsjavascripts) alias we already have for webpack.
+ - Since we [can't async load a mixin](https://github.com/vuejs/vue-loader/issues/418#issuecomment-254032223) we will use the [`ee_else_ce`](../development/ee_features.md#javascript-code-in-assetsjavascripts) alias we already have for webpack.
   - This means all the EE specific props, computed properties, methods, etc that are EE only should be in a mixin in the `ee/` folder and we need to create a CE counterpart of the mixin
 
 ##### Example:
@@ -960,7 +960,7 @@ import mixin from 'ee_else_ce/path/mixin';
 ### Non Vue Files
 For regular JS files, the approach is similar.
 
-1. We will keep using the [`ee_else_ce`](https://docs.gitlab.com/ee/development/ee_features.html#javascript-code-in-assetsjavascripts) helper, this means that EE only code should be inside the `ee/` folder.
+1. We will keep using the [`ee_else_ce`](../development/ee_features.md#javascript-code-in-assetsjavascripts) helper, this means that EE only code should be inside the `ee/` folder.
   1. An EE file should be created with the EE only code, and it should extend the CE counterpart.
   1. For code inside functions that can't be extended, the code should be moved into a new file and we should use `ee_else_ce` helper:
 
diff --git a/doc/development/elasticsearch.md b/doc/development/elasticsearch.md
index 0c9e7908713..8b0f4f02d19 100644
--- a/doc/development/elasticsearch.md
+++ b/doc/development/elasticsearch.md
@@ -2,7 +2,7 @@
 
 This area is to maintain a compendium of useful information when working with elasticsearch.
 
-Information on how to enable ElasticSearch and perform the initial indexing is kept in https://docs.gitlab.com/ee/integration/elasticsearch.html#enabling-elasticsearch
+Information on how to enable ElasticSearch and perform the initial indexing is kept in ../integration/elasticsearch.md#enabling-elasticsearch
 
 ## Initial installation on OS X
 
@@ -16,7 +16,7 @@ and use `docker stop elastic56` and `docker start elastic56` to stop/start it.
 
 ### Installing on the host
 
-We currently only support Elasticsearch [5.6 to 6.x](https://docs.gitlab.com/ee/integration/elasticsearch.html#requirements)
+We currently only support Elasticsearch [5.6 to 6.x](../integration/elasticsearch.md#version-requirements)
 
 Version 5.6 is available on homebrew and is the recommended version to use in order to test compatibility.
 
@@ -43,7 +43,7 @@ this adds `gitlab-elasticsearch-indexer` to `$GOPATH/bin`, please make sure that
 - `gitlab:elastic:test:index_size`: Tells you how much space the current index is using, as well as how many documents are in the index.
 - `gitlab:elastic:test:index_size_change`: Outputs index size, reindexes, and outputs index size again. Useful when testing improvements to indexing size.
 
-Additionally, if you need large repos or multiple forks for testing, please consider [following these instructions](https://docs.gitlab.com/ee/development/rake_tasks.html#extra-project-seed-options)
+Additionally, if you need large repos or multiple forks for testing, please consider [following these instructions](rake_tasks.md#extra-project-seed-options)
 
 ## How does it work?
 
diff --git a/doc/development/feature_flags.md b/doc/development/feature_flags.md
index 82b09cc0224..c871015aaf6 100644
--- a/doc/development/feature_flags.md
+++ b/doc/development/feature_flags.md
@@ -28,7 +28,7 @@ the time, you should execute `/chatops run feature set my_feature_flag 50`.
 
 This document only covers feature flags used in the development of GitLab 
 itself. Feature flags in deployed user applications can be found at 
-[Feature Flags](https://docs.gitlab.com/ee/user/project/operations/feature_flags.html)
+[Feature Flags](../user/project/operations/feature_flags.md)
 
 ## Developing with feature flags
 
@@ -111,7 +111,7 @@ Whenever a feature flag is present, make sure to test _both_ states of the
 feature flag.
 
 See the
-[testing guide](testing_guide/best_practices.html#feature-flags-in-tests)
+[testing guide](testing_guide/best_practices.md#feature-flags-in-tests)
 for information and examples on how to stub feature flags in tests.
 
 ## Enabling a feature flag (in development)
diff --git a/doc/development/geo.md b/doc/development/geo.md
index c8e6a86eb52..87ec34ec5c4 100644
--- a/doc/development/geo.md
+++ b/doc/development/geo.md
@@ -90,7 +90,7 @@ projects that need updating. Those projects can be:
   timestamp that is more recent than the `last_repository_successful_sync_at`
   timestamp in the `Geo::ProjectRegistry` model.
 - Manual: The admin can manually flag a repository to resync in the
-  [Geo admin panel](https://docs.gitlab.com/ee/user/admin_area/geo_nodes.html).
+  [Geo admin panel](../user/admin_area/geo_nodes.md).
 
 When we fail to fetch a repository on the secondary `RETRIES_BEFORE_REDOWNLOAD`
 times, Geo does a so-called _redownload_. It will do a clean clone
@@ -299,7 +299,7 @@ basically hashes all Git refs together and stores that hash in the
 The **secondary** node does the same to calculate the hash of its
 clone, and compares the hash with the value the **primary** node
 calculated. If there is a mismatch, Geo will mark this as a mismatch
-and the administrator can see this in the [Geo admin panel](https://docs.gitlab.com/ee/user/admin_area/geo_nodes.html).
+and the administrator can see this in the [Geo admin panel](../user/admin_area/geo_nodes.md).
 
 ## Glossary
 
diff --git a/doc/development/go_guide/index.md b/doc/development/go_guide/index.md
index cf78b792ffd..4dad8815fcb 100644
--- a/doc/development/go_guide/index.md
+++ b/doc/development/go_guide/index.md
@@ -40,7 +40,7 @@ of possible security breaches in our code:
 - SQL injections
 
 Remember to run
-[SAST](https://docs.gitlab.com/ee/user/application_security/sast/index)
+[SAST](../../user/application_security/sast/index.md)
 **[ULTIMATE]** on your project (or at least the [gosec
 analyzer](https://gitlab.com/gitlab-org/security-products/analyzers/gosec)),
 and to follow our [Security
@@ -94,9 +94,9 @@ become available, you will be able to share job templates like this
 Dependencies should be kept to the minimum. The introduction of a new
 dependency should be argued in the merge request, as per our [Approval
 Guidelines](../code_review.md#approval-guidelines). Both [License
-Management](https://docs.gitlab.com/ee/user/project/merge_requests/license_management.html)
+Management](../../user/project/merge_requests/license_management.md)
 **[ULTIMATE]** and [Dependency
-Scanning](https://docs.gitlab.com/ee/user/application_security/dependency_scanning/index)
+Scanning](../../user/application_security/dependency_scanning/index.md)
 **[ULTIMATE]** should be activated on all projects to ensure new dependencies
 security status and license compatibility.
 
diff --git a/doc/development/i18n/merging_translations.md b/doc/development/i18n/merging_translations.md
index 85284d8c714..eadf1cd74c5 100644
--- a/doc/development/i18n/merging_translations.md
+++ b/doc/development/i18n/merging_translations.md
@@ -32,7 +32,7 @@ clicking `Pause sync` on the [Crowdin integration settings
 page](https://translate.gitlab.com/project/gitlab-ee/settings#integration).
 
 When all failures are resolved, the translations need to be double
-checked once more as discussed in [confidential issue](https://docs.gitlab.com/ee/user/project/issues/confidential_issues.html) `https://gitlab.com/gitlab-org/gitlab-ce/issues/37850`.
+checked once more as discussed in [confidential issue](../../user/project/issues/confidential_issues.md) `https://gitlab.com/gitlab-org/gitlab-ce/issues/37850`.
 
 ## Merging translations
 
diff --git a/doc/development/import_export.md b/doc/development/import_export.md
index f7f48b03651..fd067b80c16 100644
--- a/doc/development/import_export.md
+++ b/doc/development/import_export.md
@@ -27,7 +27,7 @@ Read through the current performance problems using the Import/Export below.
 
 ### OOM errors
 
-Out of memory (OOM) errors are normally caused by the [Sidekiq Memory Killer](https://docs.gitlab.com/ee/administration/operations/sidekiq_memory_killer.html):
+Out of memory (OOM) errors are normally caused by the [Sidekiq Memory Killer](../administration/operations/sidekiq_memory_killer.md):
 
 ```bash
 SIDEKIQ_MEMORY_KILLER_MAX_RSS = 2GB in GitLab.com
diff --git a/doc/development/licensed_feature_availability.md b/doc/development/licensed_feature_availability.md
index 1657d73e0c9..6f3dd59b2c3 100644
--- a/doc/development/licensed_feature_availability.md
+++ b/doc/development/licensed_feature_availability.md
@@ -7,8 +7,8 @@ on-premise or GitLab.com plans and features.
 ## Restricting features scoped by namespaces or projects
 
 GitLab.com plans are persisted on user groups and namespaces, therefore, if you're adding a
-feature such as [Related issues](https://docs.gitlab.com/ee/user/project/issues/related_issues.html) or 
-[Service desk](https://docs.gitlab.com/ee/user/project/service_desk.html), 
+feature such as [Related issues](../user/project/issues/related_issues.md) or 
+[Service desk](../user/project/service_desk.md), 
 it should be restricted on namespace scope.
 
 1. Add the feature symbol on `EES_FEATURES`, `EEP_FEATURES` or `EEU_FEATURES` constants in 
@@ -22,8 +22,8 @@ project.feature_available?(:feature_symbol)
 
 ## Restricting global features (instance)
 
-However, for features such as [Geo](https://docs.gitlab.com/ee/administration/geo/replication/index.html) and 
-[Load balancing](https://docs.gitlab.com/ee/administration/database_load_balancing.html), which cannot be restricted 
+However, for features such as [Geo](../administration/geo/replication/index.md) and 
+[Load balancing](../administration/database_load_balancing.md), which cannot be restricted 
 to only a subset of projects or namespaces, the check will be made directly in 
 the instance license.
 
diff --git a/doc/development/new_fe_guide/development/components.md b/doc/development/new_fe_guide/development/components.md
index 8ae58d30c35..963ce53423b 100644
--- a/doc/development/new_fe_guide/development/components.md
+++ b/doc/development/new_fe_guide/development/components.md
@@ -17,5 +17,5 @@ D3 is very popular across many projects outside of GitLab:
 
 Within GitLab, D3 has been used for the following notable features
 
-- [Prometheus graphs](https://docs.gitlab.com/ee/user/project/integrations/prometheus.html)
+- [Prometheus graphs](../../../user/project/integrations/prometheus.md)
 - Contribution calendars
diff --git a/doc/development/new_fe_guide/tips.md b/doc/development/new_fe_guide/tips.md
index 889a5aab2b7..4564f678ec0 100644
--- a/doc/development/new_fe_guide/tips.md
+++ b/doc/development/new_fe_guide/tips.md
@@ -10,16 +10,16 @@ yarn clean
 
 ## Creating feature flags in development
 
-The process for creating a feature flag is the same as [enabling a feature flag in development](https://docs.gitlab.com/ee/development/feature_flags.html#enabling-a-feature-flag-in-development).
+The process for creating a feature flag is the same as [enabling a feature flag in development](../feature_flags.md#enabling-a-feature-flag-in-development).
 
 Your feature flag can now be:
 
-- [made available to the frontend](https://docs.gitlab.com/ee/development/feature_flags.html#frontend) via the `gon`
-- queried in [tests](https://docs.gitlab.com/ee/development/feature_flags.html#specs)
+- [made available to the frontend](../feature_flags.md#frontend) via the `gon`
+- queried in [tests](../feature_flags.md#specs)
 - queried in HAML templates and ruby files via the `Feature.enabled?(:my_shiny_new_feature_flag)` method
 
 ### More on feature flags
 
-- [Deleting a feature flag](https://docs.gitlab.com/ee/api/features.html#delete-a-feature)
-- [Manage feature flags](https://docs.gitlab.com/ee/development/feature_flags.html)
-- [Feature flags API](https://docs.gitlab.com/ee/api/features.html)
+- [Deleting a feature flag](../../api/features.md#delete-a-feature)
+- [Manage feature flags](../feature_flags.md)
+- [Feature flags API](../../api/features.md)
diff --git a/doc/development/packages.md b/doc/development/packages.md
index a3b891d7834..ab0c5f9904d 100644
--- a/doc/development/packages.md
+++ b/doc/development/packages.md
@@ -1,8 +1,8 @@
 # Packages **[PREMIUM]**
 
-This document will guide you through adding another [package management system](https://docs.gitlab.com/ee/administration/packages.html) support to GitLab.
+This document will guide you through adding another [package management system](../administration/packages.md) support to GitLab.
 
-See already supported package types in [Packages documentation](https://docs.gitlab.com/ee/administration/packages.html)
+See already supported package types in [Packages documentation](../administration/packages.md)
 
 Since GitLab packages' UI is pretty generic, it is possible to add new
 package system support by solely backend changes. This guide is superficial and does 
@@ -46,7 +46,7 @@ Group-level and instance-level endpoints are good to have but are optional.
 
 NOTE: **Note:**
 To avoid name conflict for instance-level endpoints we use 
-[the package naming convention](https://docs.gitlab.com/ee/user/project/packages/npm_registry.html#package-naming-convention)
+[the package naming convention](../user/project/packages/npm_registry.md#package-naming-convention)
 
 ## Configuration
 
diff --git a/doc/development/rake_tasks.md b/doc/development/rake_tasks.md
index f06ffab03c6..28a12572961 100644
--- a/doc/development/rake_tasks.md
+++ b/doc/development/rake_tasks.md
@@ -31,7 +31,7 @@ project.
 #### Seeding issues for Insights charts **[ULTIMATE]**
 
 You can seed issues specifically for working with the
-[Insights charts](https://docs.gitlab.com/ee/user/group/insights/index.html) with the
+[Insights charts](../user/group/insights/index.md) with the
 `gitlab:seed:insights:issues` task:
 
 ```shell
diff --git a/doc/development/rolling_out_changes_using_feature_flags.md b/doc/development/rolling_out_changes_using_feature_flags.md
index 8e4e07c4319..1b4c89ba2a8 100644
--- a/doc/development/rolling_out_changes_using_feature_flags.md
+++ b/doc/development/rolling_out_changes_using_feature_flags.md
@@ -102,7 +102,7 @@ GitLab's feature library (using
 [Flipper](https://github.com/jnunemaker/flipper), and covered in the [Feature
 Flags](feature_flags.md) guide) supports rolling out changes to a percentage of
 users. This in turn can be controlled using [GitLab
-chatops](https://docs.gitlab.com/ee/ci/chatops/).
+chatops](../ci/chatops/README.md).
 
 For an up to date list of feature flag commands please see [the source
 code](https://gitlab.com/gitlab-com/chatops/blob/master/lib/chatops/commands/feature.rb).
diff --git a/doc/development/testing_guide/review_apps.md b/doc/development/testing_guide/review_apps.md
index f34793c11f4..b5fde92a23d 100644
--- a/doc/development/testing_guide/review_apps.md
+++ b/doc/development/testing_guide/review_apps.md
@@ -113,7 +113,7 @@ You can also manually start the `review-qa-all`: it runs the full QA suite.
 On every [pipeline][gitlab-pipeline] in the `qa` stage, the
 `review-performance` job is automatically started: this job does basic
 browser performance testing using a
-[Sitespeed.io Container](https://docs.gitlab.com/ee/user/project/merge_requests/browser_performance_testing.html).
+[Sitespeed.io Container](../../user/project/merge_requests/browser_performance_testing.md).
 
 ## How to:
 
@@ -203,7 +203,7 @@ find a way to limit it to only us.**
 [automated_cleanup.rb]: https://gitlab.com/gitlab-org/gitlab-ee/blob/master/scripts/review_apps/automated_cleanup.rb
 [Auto-DevOps.gitlab-ci.yml]: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/lib/gitlab/ci/templates/Auto-DevOps.gitlab-ci.yml
 [gitlab-ci-yml]: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/.gitlab-ci.yml
-[gitlab-k8s-integration]: https://docs.gitlab.com/ee/user/project/clusters/index.html
+[gitlab-k8s-integration]: ../../user/project/clusters/index.md
 [password-bug]: https://gitlab.com/gitlab-org/gitlab-ce/issues/53621
 
 ---
diff --git a/doc/university/support/README.md b/doc/university/support/README.md
index 3d4004611ed..c8ade54a77c 100644
--- a/doc/university/support/README.md
+++ b/doc/university/support/README.md
@@ -61,15 +61,14 @@ Sometimes we need to upgrade customers from old versions of GitLab to latest, so
      - Users
      - Groups
      - Projects
-  - [Backup using our Backup rake task](../../raketasks/backup_restore.md#create-a-backup-of-the-gitlab-system)
+  - [Backup using our Backup rake task](../../raketasks/backup_restore.md#creating-a-backup-of-the-gitlab-system)
   - [Upgrade to 5.0 source using our Upgrade documentation](https://gitlab.com/gitlab-org/gitlab-ee/blob/master/doc/update/4.2-to-5.0.md)
   - [Upgrade to 5.1 source](https://gitlab.com/gitlab-org/gitlab-ee/blob/master/doc/update/5.0-to-5.1.md)
   - [Upgrade to 6.0 source](https://gitlab.com/gitlab-org/gitlab-ee/blob/master/doc/update/5.1-to-6.0.md)
   - [Upgrade to 7.14 source](https://gitlab.com/gitlab-org/gitlab-ee/blob/master/doc/update/6.x-or-7.x-to-7.14.md)
-  - [Backup using our Backup rake task](../../raketasks/backup_restore.md#create-a-backup-of-the-gitlab-system)
-  - [Perform the MySQL to PostgreSQL migration to convert your backup](../../update/mysql_to_postgresql.md#converting-a-gitlab-backup-file-from-mysql-to-postgres)
+  - [Perform the MySQL to PostgreSQL migration to convert your backup](../../update/mysql_to_postgresql.md)
   - [Upgrade to Omnibus 7.14](https://docs.gitlab.com/omnibus/update/README.html#upgrading-from-a-non-omnibus-installation-to-an-omnibus-installation)
-  - [Restore backup using our Restore rake task](../../raketasks/backup_restore.md#restore-a-previously-created-backup)
+  - [Restore backup using our Restore rake task](../../raketasks/backup_restore.md#restore)
   - [Upgrade to latest EE](https://about.gitlab.com/downloads-ee)
      - (GitLab inc. only) Acquire and apply a license for the Enterprise Edition product, ask in #support
 - Perform a downgrade from [EE to CE](../../downgrade_ee_to_ce/README.md)