Fix some errors in Markdown files

doc/administration/geo/replication/configuration.md

@@ -17,7 +17,7 @@ You are encouraged to first read through all the steps before executing them
 in your testing/production environment.
 
 NOTE: **Note:**
-**Do not** set up any custom authentication for the **secondary** nodes. This will be handled by the **primary** node.  
+**Do not** set up any custom authentication for the **secondary** nodes. This will be handled by the **primary** node.
 Any change that requires access to the **Admin Area** needs to be done in the
 **primary** node because the **secondary** node is a read-only replica.
 
@@ -242,7 +242,7 @@ node's Geo Nodes dashboard in your browser.
 ![Geo dashboard](img/geo_node_dashboard.png)
 
 If your installation isn't working properly, check the
-[troubleshooting document].
+[troubleshooting document](troubleshooting.md).
 
 The two most obvious issues that can become apparent in the dashboard are:
 

doc/administration/geo/replication/updating_the_geo_nodes.md

@@ -251,7 +251,7 @@ Omnibus is the following:
 1. Check the steps about defining `postgresql['sql_user_password']`, `gitlab_rails['db_password']`.
 1. Make sure `postgresql['max_replication_slots']` matches the number of **secondary** Geo nodes locations.
 1. Install GitLab on the **secondary** server.
-1. Re-run the [database replication process][database-replication].
+1. Re-run the [database replication process](database.md#step-3-initiate-the-replication-process).
 
 ## Special update notes for 9.0.x
 

doc/api/README.md

@@ -29,7 +29,7 @@ The following API resources are available in the project context:
 | [Commits](commits.md)                                               | `/projects/:id/repository/commits`, `/projects/:id/statuses`                                                                                                                                          |
 | [Container Registry](container_registry.md)                         | `/projects/:id/registry/repositories`                                                                                                                                                                 |
 | [Custom attributes](custom_attributes.md)                           | `/projects/:id/custom_attributes` (also available for groups and users)                                                                                                                               |
-| [Dependencies](dependencies.md) **[ULTIMATE]**                      | `/projects/:id/dependencies`
+| [Dependencies](dependencies.md) **(ULTIMATE)**                      | `/projects/:id/dependencies`
 | [Deploy keys](deploy_keys.md)                                       | `/projects/:id/deploy_keys` (also available standalone)                                                                                                                                               |
 | [Deployments](deployments.md)                                       | `/projects/:id/deployments`                                                                                                                                                                           |
 | [Discussions](discussions.md) (threaded comments)                   | `/projects/:id/issues/.../discussions`, `/projects/:id/snippets/.../discussions`, `/projects/:id/merge_requests/.../discussions`, `/projects/:id/commits/.../discussions` (also available for groups) |

doc/topics/autodevops/index.md

@@ -750,7 +750,7 @@ also be customized, and you can easily use a [custom buildpack](#custom-buildpac
 | `DB_MIGRATE`                 | From GitLab 11.4, this variable can be used to specify the command to run to migrate the application's PostgreSQL database. It runs inside the application pod. |
 | `STAGING_ENABLED`            | From GitLab 10.8, this variable can be used to define a [deploy policy for staging and production environments](#deploy-policy-for-staging-and-production-environments). |
 | `CANARY_ENABLED`             | From GitLab 11.0, this variable can be used to define a [deploy policy for canary environments](#deploy-policy-for-canary-environments-premium). |
-| `INCREMENTAL_ROLLOUT_MODE`| From GitLab 11.4, this variable, if present, can be used to enable an [incremental rollout](#incremental-rollout-to-production-premium) of your application for the production environment.<br/>Set to: <ul><li>`manual`, for manual deployment jobs.</li><li>`timed`, for automatic rollout deployments with a 5 minute delay each one.</li></ul> |
+| `INCREMENTAL_ROLLOUT_MODE`| From GitLab 11.4, this variable, if present, can be used to enable an [incremental rollout](#incremental-rollout-to-production-premium) of your application for the production environment. Set to `manual` for manual deployment jobs or `timed` for automatic rollout deployments with a 5 minute delay each one. |
 | `TEST_DISABLED`              | From GitLab 11.0, this variable can be used to disable the `test` job. If the variable is present, the job will not be created. |
 | `CODE_QUALITY_DISABLED`       | From GitLab 11.0, this variable can be used to disable the `codequality` job. If the variable is present, the job will not be created. |
 | `LICENSE_MANAGEMENT_DISABLED` | From GitLab 11.0, this variable can be used to disable the `license_management` job. If the variable is present, the job will not be created. |