Update repository check documentation
What does this MR do?
Updates the repository check documentation to match what's in configuration and code.
Are there points in the code the reviewer needs to double check?
Verify that my logic is correct. The following code finds the projects to check. Based on what I see here, I understand that we will only check projects once per month:
Project.where('last_repository_check_at < ?', 1.month.ago)
Also, here are the relevant default cron entries in gitlab.yml
and I also verified that these values match the defaults built in to 1_settings.rb
initializer:
repository_check_worker:
cron: "20 * * * *"
# Send admin emails once a week
admin_email_worker:
cron: "0 0 * * 0"