Add description and social media sharing img to handbook marketing + team handbook (!3162) · Merge requests · GitLab.com / www-gitlab-com · GitLab

Do not update/delete: Banner broadcast message test data

Do not update/delete: Notification broadcast message test data

username-removed-236961 requested to merge marcia-update-handbook-1 into master Sep 14, 2016

Add image from https://gitlab.com/gitlab-com/marketing/issues/426