Convert absolute links to relative in /ci docs

Fix more links after review

Update redirect_from link

Apply suggestion to doc/ci/introduction/index.md

Apply suggestion to doc/ci/README.md

Apply suggestion to doc/ci/README.md

Make front matter redirect_from links absolute

Change front matter to fix discus comments

1 files changed, 8 insertions, 8 deletions

diff --git a/doc/ci/yaml/README.md b/doc/ci/yaml/README.md
index fa4b0378f61..9fe0285fcc3 100644
--- a/doc/ci/yaml/README.md
+++ b/doc/ci/yaml/README.md
@@ -1458,7 +1458,7 @@ combination thereof (`junit: [rspec.xml, test-results/TEST-*.xml]`).
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `codequality` report collects [CodeQuality issues](https://docs.gitlab.com/ee/user/project/merge_requests/code_quality.html)
+The `codequality` report collects [CodeQuality issues](../../user/project/merge_requests/code_quality.md)
 as artifacts.
 
 The collected Code Quality report will be uploaded to GitLab as an artifact and will
@@ -1468,7 +1468,7 @@ be automatically shown in merge requests.
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `sast` report collects [SAST vulnerabilities](https://docs.gitlab.com/ee/user/application_security/sast/index.html)
+The `sast` report collects [SAST vulnerabilities](../../user/application_security/sast/index.md)
 as artifacts.
 
 The collected SAST report will be uploaded to GitLab as an artifact and will
@@ -1479,7 +1479,7 @@ dashboards.
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `dependency_scanning` report collects [Dependency Scanning vulnerabilities](https://docs.gitlab.com/ee/user/application_security/dependency_scanning/index.html)
+The `dependency_scanning` report collects [Dependency Scanning vulnerabilities](../../user/application_security/dependency_scanning/index.md)
 as artifacts.
 
 The collected Dependency Scanning report will be uploaded to GitLab as an artifact and will
@@ -1490,7 +1490,7 @@ dashboards.
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `container_scanning` report collects [Container Scanning vulnerabilities](https://docs.gitlab.com/ee/user/application_security/container_scanning/index.html)
+The `container_scanning` report collects [Container Scanning vulnerabilities](../../user/application_security/container_scanning/index.md)
 as artifacts.
 
 The collected Container Scanning report will be uploaded to GitLab as an artifact and will
@@ -1501,7 +1501,7 @@ dashboards.
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `dast` report collects [DAST vulnerabilities](https://docs.gitlab.com/ee/user/application_security/dast/index.html)
+The `dast` report collects [DAST vulnerabilities](../../user/application_security/dast/index.md)
 as artifacts.
 
 The collected DAST report will be uploaded to GitLab as an artifact and will
@@ -1512,7 +1512,7 @@ dashboards.
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `license_management` report collects [Licenses](https://docs.gitlab.com/ee/user/project/merge_requests/license_management.html)
+The `license_management` report collects [Licenses](../../user/project/merge_requests/license_management.md)
 as artifacts.
 
 The collected License Management report will be uploaded to GitLab as an artifact and will
@@ -1523,7 +1523,7 @@ dashboards.
 
 > Introduced in GitLab 11.5. Requires GitLab Runner 11.5 and above.
 
-The `performance` report collects [Performance metrics](https://docs.gitlab.com/ee//user/project/merge_requests/browser_performance_testing.html)
+The `performance` report collects [Performance metrics](../../user/project/merge_requests/browser_performance_testing.md)
 as artifacts.
 
 The collected Performance report will be uploaded to GitLab as an artifact and will
@@ -1716,7 +1716,7 @@ parallel. This value has to be greater than or equal to two (2) and less than or
 This creates N instances of the same job that run in parallel. They're named
 sequentially from `job_name 1/N` to `job_name N/N`.
 
-For every job, `CI_NODE_INDEX` and `CI_NODE_TOTAL` [environment variables](../variables/README.html#predefined-environment-variables) are set.
+For every job, `CI_NODE_INDEX` and `CI_NODE_TOTAL` [environment variables](../variables/README.md#predefined-environment-variables) are set.
 
 A simple example: