Docs: (EE Port) Merge EE doc/user/admin_area to CE

doc/administration/index.md

@@ -72,7 +72,7 @@ Learn how to install, configure, update, and maintain your GitLab instance.
 - [Branded login page](../customization/branded_login_page.md): Customize the login page with your own logo, title, and description.
 - [Welcome message](../customization/welcome_message.md): Add a custom welcome message to the sign-in page.
 - ["New Project" page](../customization/new_project_page.md): Customize the text to be displayed on the page that opens whenever your users create a new project.
-- [Additional custom email text](../user/admin_area/settings/email.md#custom-additional-text): Add additional custom text to emails sent from GitLab. **[PREMIUM ONLY]**
+- [Additional custom email text](../user/admin_area/settings/email.md#custom-additional-text-premium-only): Add additional custom text to emails sent from GitLab. **[PREMIUM ONLY]**
 
 ### Maintaining GitLab
 

doc/user/admin_area/geo_nodes.md

 # Geo nodes admin area **[PREMIUM ONLY]**
 
 For more information about setting up GitLab Geo, read the
-[Geo documentation](../../gitlab-geo/README.md).
+[Geo documentation](https://docs.gitlab.com/ee/administration/geo/replication/index.html).
 
 When you're done, you can navigate to **Admin area > Geo** (`/admin/geo/nodes`).
 
@@ -25,7 +25,7 @@ changes on the **primary** node!
 
 | Setting                   | Description |
 |---------------------------|-------------|
-| Selective synchronization | Enable Geo [selective sync](../../administration/geo/replication/configuration.md#selective-synchronization) for this **secondary** node. |
+| Selective synchronization | Enable Geo [selective sync](https://docs.gitlab.com/ee/administration/geo/replication/configuration.html#selective-synchronization) for this **secondary** node. |
 | Repository sync capacity  | Number of concurrent requests this **secondary** node will make to the **primary** node when backfilling repositories. |
 | File sync capacity        | Number of concurrent requests this **secondary** node will make to the **primary** node when backfilling files. |
 

doc/user/admin_area/index.md

@@ -16,14 +16,14 @@ The Admin Area is made up of the following sections:
 
 | Section                    | Description                                                                                                                                              |
 |:---------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------|
-| Overview                   | View your GitLab [Dashboard](#admin-dashboard), and administer [projects](#administer-projects), users, groups, jobs, runners, and Gitaly servers.                                                     |
+| Overview                   | View your GitLab [Dashboard](#admin-dashboard), and administer [projects](#administer-projects), users, groups, jobs, runners, and Gitaly servers.       |
 | Monitoring                 | View GitLab system information, and information on background jobs, logs, [health checks](monitoring/health_check.md), request profiles, and audit logs. |
 | Messages                   | Send and manage [broadcast messages](broadcast_messages.md) for your users.                                                                              |
 | System Hooks               | Configure [system hooks](../../system_hooks/system_hooks.md) for many events.                                                                            |
 | Applications               | Create system [OAuth applications](../../integration/oauth_provider.md) for integrations with other services.                                            |
 | Abuse Reports              | Manage [abuse reports](abuse_reports.md) submitted by your users.                                                                                        |
 | License **[STARTER ONLY]** | Upload, display, and remove [licenses](license.md).                                                                                                      |
-| Push Rules **[STARTER]**   | Configure pre-defined git [push rules](../../push_rules/push_rules.md) for projects.                                                                                |
+| Push Rules **[STARTER]**   | Configure pre-defined git [push rules](https://docs.gitlab.com/ee/push_rules/push_rules.html) for projects.                                              |
 | Geo **[PREMIUM ONLY]**     | Configure and maintain [Geo nodes](geo_nodes.md).                                                                                                        |
 | Deploy Keys                | Create instance-wide [SSH deploy keys](../../ssh/README.md#deploy-keys).                                                                                 |
 | Service Templates          | Create [service templates](../project/integrations/services_templates.md) for projects.                                                                  |
@@ -51,7 +51,6 @@ The Dashboard is the default view of the Admin Area, and is made up of the follo
 | Features   | All features available on the GitLab instance. Enabled features are marked with a green circle icon, and disabled features are marked with a power icon. |
 | Components | The major components of GitLab and the version number of each. A link to the Gitaly Servers is also included. |
 
-
 ## Administer Projects
 
 You can administer all projects in the GitLab instance from the Admin Area's Projects page.

doc/user/admin_area/settings/email.md

@@ -4,7 +4,7 @@
 
 The logo in the header of some emails can be customized, see the [logo customization section](../../../customization/branded_page_and_email_header.md).
 
-## Custom additional text
+## Custom additional text **[PREMIUM ONLY]**
 
 >[Introduced][ee-5031] in [GitLab Premium][eep] 10.7.
 
@@ -34,5 +34,5 @@ In order to change this option:
 1. Hit **Save** for the changes to take effect.
 
 NOTE: **Note**: Once the hostname gets configured, every private commit email using the previous hostname, will not get
-recognized by GitLab. This can directly conflict with certain [Push rules](../../../push_rules/push_rules.md) such as
+recognized by GitLab. This can directly conflict with certain [Push rules](https://docs.gitlab.com/ee/push_rules/push_rules.html) such as
 `Check whether author is a GitLab user` and `Check whether committer is the current authenticated user`.

doc/user/admin_area/settings/external_authorization.md

-# External authorization control **[PREMIUM]**
+# External authorization control **[CORE ONLY]**
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab-ee/issues/4216) in
 > [GitLab Premium](https://about.gitlab.com/pricing) 10.6.
+> [Moved](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/27056) to
+> [GitLab Core](https://about.gitlab.com/pricing/) in 11.10.
 
 In highly controlled environments, it may be necessary for access policy to be
 controlled by an external service that permits access based on project

doc/user/admin_area/settings/index.md

@@ -6,7 +6,7 @@ instance like sign-up restrictions, account limits and quota, metrics, etc.
 Navigate to it by going to **Admin area > Settings**. Some of the settings
 include:
 
-- [Account and limit settings](account_and_limit_settings.md)
+- [Account and limit settings](account_and_limit_settings.md) **[STARTER]**
 - [Continuous Integration and Deployment](continuous_integration.md)
 - [Email](email.md)
 - [Sign up restrictions](sign_up_restrictions.md)
@@ -14,7 +14,7 @@ include:
 - [Third party offers](third_party_offers.md)
 - [Usage statistics](usage_statistics.md)
 - [Visibility and access controls](visibility_and_access_controls.md)
-- [Custom templates repository](instance_template_repository.md)
+- [Custom templates repository](instance_template_repository.md) **[PREMIUM]**
 
 NOTE: **Note:**
 You can change the [first day of the week](../../profile/preferences.md) for the entire GitLab instance