Merge branch 'docs-autodevops-update' into 'master'

remove duplicate section for enabling at project level

See merge request gitlab-org/gitlab-ce!22627

doc/topics/autodevops/index.md

@@ -225,10 +225,11 @@ Auto DevOps at the project level.
 
 ### Enabling/disabling Auto DevOps at the project-level
 
-1. Check that your project doesn't have a `.gitlab-ci.yml`, or if one exists, remove it.
+If enabling, check that your project doesn't have a `.gitlab-ci.yml`, or if one exists, remove it.
+
 1. Go to your project's **Settings > CI/CD > Auto DevOps**.
-1. Check the **Default to Auto DevOps pipeline** checkbox.
-1. Optionally, but recommended, add in the [base domain](#auto-devops-base-domain)
+1. Toggle the **Default to Auto DevOps pipeline** checkbox (checked to enable, unchecked to disable)
+1. When enabling, it's optional but recommended to add in the [base domain](#auto-devops-base-domain)
    that will be used by Auto DevOps to [deploy your application](#auto-deploy)
    and choose the [deployment strategy](#deployment-strategy).
 1. Click **Save changes** for the changes to take effect.
@@ -246,12 +247,6 @@ There is also a feature flag to enable Auto DevOps to a percentage of projects
 which can be enabled from the console with
 `Feature.get(:force_autodevops_on_by_default).enable_percentage_of_actors(10)`.
 
-### Disable Auto DevOps at the project level
-
-1. Go to your project's **Settings > CI/CD > Auto DevOps**.
-1. Uncheck the **Default to Auto DevOps pipeline** checkbox.
-1. Click **Save changes** for the changes to take effect.
-
 ### Deployment strategy
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/38542) in GitLab 11.0.