GitLab

Went through the docs and issues and made some updates

Change-Id: I7f628c45fc9a992c7a70f864e027a3525ea9054b
Reviewed-on: https://chromium-review.googlesource.com/1178101
Commit-Queue: Jonathon Kereliuk <kereliuk@google.com>
Reviewed-by: John Chen <johnchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584200}