Backport doc/user/group/img/groups.png changes from EE (!21415) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Stan Hu requested to merge sh-backport-groups-png-docs into master Aug 29, 2018

These changes were introduced in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6622 but should have originated in CE.