Geo HA docs: Create a section on a standalone tracking database
As suggested in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8117?w=1#note_113253934, it would be helpful to customers implementing self-hosted Geo HA.
cc @abuerer
As suggested in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8117?w=1#note_113253934, it would be helpful to customers implementing self-hosted Geo HA.
cc @abuerer