GitLab

Fix printing policy documentation.

Surround untranslatable strings with <ph> tags.
Fix typos.

Bug: none
Change-Id: Ia2c6db897af1dfdc76a24426d6b29c841ca9d29d
Reviewed-on: https://chromium-review.googlesource.com/679255Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Commit-Queue: Sean Kau <skau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#505426}