Move Mattermost integration docs to gitlab-org/gitlab
For &5173.
-
Copy doc/gitlab-mattermost/README.md
undergitlab-org/gitlab
:doc/integration/mattermost.md
. -
Redirect to the new page. -
Update the docs navbar.
Edited by Amy Qualls
For &5173.
doc/gitlab-mattermost/README.md
under gitlab-org/gitlab
: doc/integration/mattermost.md
.