clarify lowercase URL
Clarifying some confusion that arose from https://gitlab.com/gitlab-com/www-gitlab-com/merge_requests/4955 .
One thing is referring to GitLab.com, another is making URLs.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Clarifying some confusion that arose from https://gitlab.com/gitlab-com/www-gitlab-com/merge_requests/4955 .
One thing is referring to GitLab.com, another is making URLs.