WIP: Add alerts to doc styleguide
What does this MR do?
Add alerts styleguide now that the docs site supports them. See https://gitlab.com/gitlab-com/gitlab-docs/merge_requests/133.
Edited by Achilleas Pipinellis
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Add alerts styleguide now that the docs site supports them. See https://gitlab.com/gitlab-com/gitlab-docs/merge_requests/133.