Switch to gitlab_rails['auto_migrate'] = false
What does this MR do?
Update docs to use gitlab_rails['auto_migrate'] = false
rather than /etc/gitlab/skip-auto-migrations
per omnibus-gitlab#1685 (comment 17823027).
Update docs to use gitlab_rails['auto_migrate'] = false
rather than /etc/gitlab/skip-auto-migrations
per omnibus-gitlab#1685 (comment 17823027).