Added note about chef
Added note about chef being required to generate GitLab config. because of tweet https://twitter.com/grahamgilbert/status/621015318442459136
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Added note about chef being required to generate GitLab config. because of tweet https://twitter.com/grahamgilbert/status/621015318442459136