CI Scheduling backup documentation

@vsizov The backup documentation should be in the repo of GitLab-CI not in Omnibus. Just like https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/raketasks/backup_restore.md

Yes, but I've done it in consistency with this https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md#scheduling-a-backup

I've renamed this MR because it might be confuse you.

@vsizov We decided some time ago to move everything as much to the repository as possible. I think you should move https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md#scheduling-a-backup from there to https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/raketasks/backup_restore.md

OK. I will move both sections, for the GitLab and the CI.

@vsizov thanks

Status changed to closed