Mark GitLab Status Pages as Ultimate

This feature should be marked as only for Ultimate customers.

doc/user/project/status_page/index.md

@@ -4,9 +4,9 @@ group: Health
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
 ---
 
-# GitLab Status Page
+# GitLab Status Page **(ULTIMATE)**
 
-> [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/2479) in GitLab 12.10.
+> [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/2479) in [GitLab Ultimate](https://about.gitlab.com/pricing/) 12.10.
 
 GitLab Status Page allows you to create and deploy a static website to communicate efficiently to users during an incident.