Rename "Slash commands" to "Quick actions"

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/27070

Deprecate "chat commands" in favor of "slash commands"

We looked for things like:

 - `slash commmand`
 - `slash_command`
 - `slash-command`
 - `SlashCommand`

11 files changed, 69 insertions, 67 deletions

diff --git a/doc/README.md b/doc/README.md
index 9f12eed1471..d9e93ed4002 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -24,7 +24,7 @@ Shortcuts to GitLab's most visited docs:
 - [GitLab Workflow](workflow/README.md): Enhance your workflow with the best of GitLab Workflow.
   - See also [GitLab Workflow - an overview](https://about.gitlab.com/2016/10/25/gitlab-workflow-an-overview/).
 - [GitLab Markdown](user/markdown.md): GitLab's advanced formatting system (GitLab Flavored Markdown).
-- [GitLab Slash Commands](user/project/slash_commands.md): Textual shortcuts for common actions on issues or merge requests that are usually done by clicking buttons or dropdowns in GitLab's UI.
+- [GitLab Quick Actions](user/project/quick_actions.md): Textual shortcuts for common actions on issues or merge requests that are usually done by clicking buttons or dropdowns in GitLab's UI.
 
 ### User account
 
diff --git a/doc/development/limit_ee_conflicts.md b/doc/development/limit_ee_conflicts.md
index 51b4b398f2c..899be9eae4b 100644
--- a/doc/development/limit_ee_conflicts.md
+++ b/doc/development/limit_ee_conflicts.md
@@ -166,8 +166,8 @@ For instance this kind of thing:
       = render 'projects/zen', f: form, attr: :description,
                                classes: 'note-textarea',
                                placeholder: "Write a comment or drag your files here...",
-                               supports_slash_commands: !issuable.persisted?
-      = render 'projects/notes/hints', supports_slash_commands: !issuable.persisted?
+                               supports_quick_actions: !issuable.persisted?
+      = render 'projects/notes/hints', supports_quick_actions: !issuable.persisted?
       .clearfix
       .error-alert
 - if issuable.is_a?(Issue)
diff --git a/doc/integration/chat_commands.md b/doc/integration/chat_commands.md
index c878dc7e650..2856992ee25 100644
--- a/doc/integration/chat_commands.md
+++ b/doc/integration/chat_commands.md
@@ -1,14 +1 @@
-# Chat Commands
-
-Chat commands in Mattermost and Slack (also called Slack slash commands) allow you to control GitLab and view GitLab content right inside your chat client, without having to leave it. For Slack, this requires a [project service configuration](../user/project/integrations/slack_slash_commands.md). Simply type the command as a message in your chat client to activate it. 
-
-Commands are scoped to a project, with a trigger term that is specified during configuration. (We suggest you use the project name as the trigger term for simplicty and clarity.) Taking the trigger term as `project-name`, the commands are:
-
-
-| Command | Effect |
-| ------- | ------ |
-| `/project-name help` | Shows all available chat commands |
-| `/project-name issue new <title> <shift+return> <description>` | Creates a new issue with title `<title>` and description `<description>` |
-| `/project-name issue show <id>` | Shows the issue with id `<id>` |
-| `/project-name issue search <query>` | Shows up to 5 issues matching `<query>` |
-| `/project-name deploy <from> to <to>` | Deploy from the `<from>` environment to the `<to>` environment |
\ No newline at end of file
+This document was moved to [integration/slash_commands.md](slash_commands.md).
diff --git a/doc/integration/slash_commands.md b/doc/integration/slash_commands.md
new file mode 100644
index 00000000000..5d880ba785c
--- /dev/null
+++ b/doc/integration/slash_commands.md
@@ -0,0 +1,14 @@
+# Slash Commands
+
+Slash commands in Mattermost and Slack allow you to control GitLab and view GitLab content right inside your chat client, without having to leave it. For Slack, this requires a [project service configuration](../user/project/integrations/slack_slash_commands.md). Simply type the command as a message in your chat client to activate it.
+
+Commands are scoped to a project, with a trigger term that is specified during configuration. (We suggest you use the project name as the trigger term for simplicty and clarity.) Taking the trigger term as `project-name`, the commands are:
+
+
+| Command | Effect |
+| ------- | ------ |
+| `/project-name help` | Shows all available slash commands |
+| `/project-name issue new <title> <shift+return> <description>` | Creates a new issue with title `<title>` and description `<description>` |
+| `/project-name issue show <id>` | Shows the issue with id `<id>` |
+| `/project-name issue search <query>` | Shows up to 5 issues matching `<query>` |
+| `/project-name deploy <from> to <to>` | Deploy from the `<from>` environment to the `<to>` environment |
diff --git a/doc/user/discussions/index.md b/doc/user/discussions/index.md
index 59e343ebe51..8b1d299484c 100644
--- a/doc/user/discussions/index.md
+++ b/doc/user/discussions/index.md
@@ -10,7 +10,7 @@ You can leave a comment in the following places:
 - commits
 - commit diffs
 
-The comment area supports [Markdown] and [slash commands]. One can edit their
+The comment area supports [Markdown] and [quick actions]. One can edit their
 own comment at any time, and anyone with [Master access level][permissions] or
 higher can also edit a comment made by someone else.
 
@@ -146,5 +146,5 @@ comments in greater detail.
 [discussion-view]: img/discussion_view.png
 [discussions-resolved]: img/discussions_resolved.png
 [markdown]: ../markdown.md
-[slash commands]: ../project/slash_commands.md
+[quick actions]: ../project/quick_actions.md
 [permissions]: ../permissions.md
diff --git a/doc/user/project/integrations/slack_slash_commands.md b/doc/user/project/integrations/slack_slash_commands.md
index 54e0ee611cb..c267da69bb3 100644
--- a/doc/user/project/integrations/slack_slash_commands.md
+++ b/doc/user/project/integrations/slack_slash_commands.md
@@ -2,7 +2,7 @@
 
 > Introduced in GitLab 8.15
 
-Slack slash commands (also known as chat commmands) allow you to control GitLab and view content right inside Slack, without having to leave it. This requires configurations in both Slack and GitLab. 
+Slack slash commands allow you to control GitLab and view content right inside Slack, without having to leave it. This requires configurations in both Slack and GitLab.
 
 > Note: GitLab can also send events (e.g. issue created) to Slack as notifications. This is the separately configured [Slack Notifications Service](slack.md).
 
@@ -20,4 +20,4 @@ Slack slash commands (also known as chat commmands) allow you to control GitLab
 
 ## Usage
 
-You can now use the [Slack slash commands](../../../integration/chat_commands.md).
\ No newline at end of file
+You can now use the [Slack slash commands](../../../integration/slash_commands.md).
diff --git a/doc/user/project/issues/issues_functionalities.md b/doc/user/project/issues/issues_functionalities.md
index ba843201e1a..294176e61f9 100644
--- a/doc/user/project/issues/issues_functionalities.md
+++ b/doc/user/project/issues/issues_functionalities.md
@@ -68,7 +68,7 @@ This feature is available only in [GitLab Enterprise Edition](https://about.gitl
 - Spend: add the time spent on the implementation of that issue
 
 > **Note:**
-both estimate and spend times are set via [GitLab Slash Commands](../slash_commands.md).
+both estimate and spend times are set via [GitLab Quick Actions](../quick_actions.md).
 
 Learn more on the [Time Tracking documentation](https://docs.gitlab.com/ee/workflow/time_tracking.html).
 
@@ -147,7 +147,7 @@ or in the issue thread.
 
 #### 15. Award emoji
 
-- Award an emoji to that issue. 
+- Award an emoji to that issue.
 
 > **Tip:**
 Posting "+1" as comments in threads spam all
diff --git a/doc/user/project/quick_actions.md b/doc/user/project/quick_actions.md
new file mode 100644
index 00000000000..19b51c83222
--- /dev/null
+++ b/doc/user/project/quick_actions.md
@@ -0,0 +1,39 @@
+# GitLab quick actions
+
+Quick actions are textual shortcuts for common actions on issues or merge
+requests that are usually done by clicking buttons or dropdowns in GitLab's UI.
+You can enter these commands while creating a new issue or merge request, and
+in comments. Each command should be on a separate line in order to be properly
+detected and executed. The commands are removed from the issue, merge request or
+comment body before it is saved and will not be visible to anyone else.
+
+Below is a list of all of the available commands and descriptions about what they
+do.
+
+| Command                    | Action       |
+|:---------------------------|:-------------|
+| `/close`                   | Close the issue or merge request |
+| `/reopen`                  | Reopen the issue or merge request |
+| `/merge`                   | Merge (when pipeline succeeds) |
+| `/title <New title>`       | Change title |
+| `/assign @username`        | Assign |
+| `/unassign`                | Remove assignee |
+| `/milestone %milestone`    | Set milestone |
+| `/remove_milestone`        | Remove milestone |
+| `/label ~foo ~"bar baz"`   | Add label(s) |
+| `/unlabel ~foo ~"bar baz"` | Remove all or specific label(s) |
+| `/relabel ~foo ~"bar baz"` | Replace all label(s) |
+| `/todo`                    | Add a todo |
+| `/done`                    | Mark todo as done |
+| `/subscribe`               | Subscribe |
+| `/unsubscribe`             | Unsubscribe |
+| <code>/due &lt;in 2 days &#124; this Friday &#124; December 31st&gt;</code> | Set due date |
+| `/remove_due_date`         | Remove due date |
+| `/wip`                     | Toggle the Work In Progress status |
+| <code>/estimate &lt;1w 3d 2h 14m&gt;</code> | Set time estimate |
+| `/remove_estimate`       | Remove estimated time |
+| <code>/spend &lt;1h 30m &#124; -1h 5m&gt;</code> | Add or subtract spent time |
+| `/remove_time_spent`       | Remove time spent |
+| `/target_branch <Branch Name>` | Set target branch for current merge request |
+| `/award :emoji:`  | Toggle award for :emoji: |
+| `/board_move ~column`      | Move issue to column on the board |
diff --git a/doc/user/project/slash_commands.md b/doc/user/project/slash_commands.md
index 08452ca75cd..e9103a3f49c 100644
--- a/doc/user/project/slash_commands.md
+++ b/doc/user/project/slash_commands.md
@@ -1,39 +1 @@
-# GitLab slash commands
-
-Slash commands are textual shortcuts for common actions on issues or merge
-requests that are usually done by clicking buttons or dropdowns in GitLab's UI.
-You can enter these commands while creating a new issue or merge request, and
-in comments. Each command should be on a separate line in order to be properly
-detected and executed. The commands are removed from the issue, merge request or
-comment body before it is saved and will not be visible to anyone else.
-
-Below is a list of all of the available commands and descriptions about what they
-do.
-
-| Command                    | Action       |
-|:---------------------------|:-------------|
-| `/close`                   | Close the issue or merge request |
-| `/reopen`                  | Reopen the issue or merge request |
-| `/merge`                   | Merge (when pipeline succeeds) |
-| `/title <New title>`       | Change title |
-| `/assign @username`        | Assign |
-| `/unassign`                | Remove assignee |
-| `/milestone %milestone`    | Set milestone |
-| `/remove_milestone`        | Remove milestone |
-| `/label ~foo ~"bar baz"`   | Add label(s) |
-| `/unlabel ~foo ~"bar baz"` | Remove all or specific label(s) |
-| `/relabel ~foo ~"bar baz"` | Replace all label(s) |
-| `/todo`                    | Add a todo |
-| `/done`                    | Mark todo as done |
-| `/subscribe`               | Subscribe |
-| `/unsubscribe`             | Unsubscribe |
-| <code>/due &lt;in 2 days &#124; this Friday &#124; December 31st&gt;</code> | Set due date |
-| `/remove_due_date`         | Remove due date |
-| `/wip`                     | Toggle the Work In Progress status |
-| <code>/estimate &lt;1w 3d 2h 14m&gt;</code> | Set time estimate |
-| `/remove_estimate`       | Remove estimated time |
-| <code>/spend &lt;1h 30m &#124; -1h 5m&gt;</code> | Add or subtract spent time |
-| `/remove_time_spent`       | Remove time spent |
-| `/target_branch <Branch Name>` | Set target branch for current merge request |
-| `/award :emoji:`  | Toggle award for :emoji: |
-| `/board_move ~column`      | Move issue to column on the board |
+This document was moved to [user/project/quick_actions.md](quick_actions.md).
diff --git a/doc/workflow/README.md b/doc/workflow/README.md
index 604c7d5cefb..54d4028a50a 100644
--- a/doc/workflow/README.md
+++ b/doc/workflow/README.md
@@ -21,7 +21,7 @@
 - [Project users](add-user/add-user.md)
 - [Protected branches](../user/project/protected_branches.md)
 - [Protected tags](../user/project/protected_tags.md)
-- [Slash commands](../user/project/slash_commands.md)
+- [Quick Actions](../user/project/quick_actions.md)
 - [Sharing a project with a group](share_with_group.md)
 - [Share projects with other groups](share_projects_with_other_groups.md)
 - [Time tracking](time_tracking.md)
diff --git a/doc/workflow/time_tracking.md b/doc/workflow/time_tracking.md
index de12994c516..bfe87bb2ceb 100644
--- a/doc/workflow/time_tracking.md
+++ b/doc/workflow/time_tracking.md
@@ -21,13 +21,13 @@ below.
 
 ## How to enter data
 
-Time Tracking uses two [slash commands] that GitLab introduced with this new
+Time Tracking uses two [quick actions] that GitLab introduced with this new
 feature: `/spend` and `/estimate`.
 
-Slash commands can be used in the body of an issue or a merge request, but also
+Quick actions can be used in the body of an issue or a merge request, but also
 in a comment in both an issue or a merge request.
 
-Below is an example of how you can use those new slash commands inside a comment.
+Below is an example of how you can use those new quick actions inside a comment.
 
 ![Time tracking example in a comment](time-tracking/time-tracking-example.png)
 
@@ -70,4 +70,4 @@ The following time units are available:
 Default conversion rates are 1w = 5d and 1d = 8h.
 
 [landing]: https://about.gitlab.com/features/time-tracking
-[slash-commands]: ../user/project/slash_commands.md
+[quick actions]: ../user/project/quick_actions.md