Docs: Enterprise 6.6 (#21666)

* Docs: gitlab team-sync documented correctly

* docs: initial docs for whitelabeling

* Docs: enterprise repositories

* Docs: rpm enterprise install

* Docs: re-structured the rpm install page to be more similar to the deb page

* Docs: responded to review feedback

* Docs: recommends the enterprise edition

* Update docs/sources/installation/debian.md

docs/sources/auth/gitlab.md

@@ -125,5 +125,5 @@ the correct teams.
 
 Your GitLab groups can be referenced in the same way as `allowed_groups`, like `example` or `foo/bar`.
 
-[Learn more about Team Sync]({{< relref "enhanced_ldap.md" >}})
+[Learn more about Team Sync]({{< relref "team-sync.md" >}})
 

docs/sources/auth/team-sync.md

@@ -44,4 +44,5 @@ a user as member of a team and it will not be removed when the user signs in. Th
 
 * [LDAP]({{< relref "enhanced_ldap.md#ldap-group-synchronization-for-teams" >}})
 * [GitHub OAuth]({{< relref "github.md#team-sync-enterprise-only" >}})
+* [GitLab OAuth]({{< relref "gitlab.md#team-sync-enterprise-only" >}})
 * [Auth Proxy]({{< relref "auth-proxy.md#team-sync-enterprise-only">}})