Update repo mirroring docs timeout
repo mirroring timeout is configurable https://gitlab.com/help/workflow/repository_mirroring currently we say its an immutable 15 minutes.
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/4503#note_92976510
repo mirroring timeout is configurable https://gitlab.com/help/workflow/repository_mirroring currently we say its an immutable 15 minutes.
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/4503#note_92976510