Add rule about adding new header tab to the ui guide (!5188) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Dmytro Zaporozhets (DZ) requested to merge dz-ui-guide-nav into master Jul 11, 2016

To address cases like https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/3749#note_12994215