Unify HA documentation
We have HA documentation spread across a few different areas, and should unify the documentation to make it easier to follow and configure.
For example we have HA documentation in two places in the Gitlab-EE repo:
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
We have HA documentation spread across a few different areas, and should unify the documentation to make it easier to follow and configure.
For example we have HA documentation in two places in the Gitlab-EE repo: