broken documentation + links

1. Clicking "GitLab Enterprise Edition repository: https://gitlab.com/gitlab-com/gitlab-ee" links to a 404 at https://gitlab.com/gitlab-com/gitlab-ee

2. Clicking "For standard subscribers, please see emergency contact info and other useful information in the Standard subscribers README." also links to a 404

3. Logging into gitlab.com on the activity page shows the last update to be several months ago: