Update the documentation on using the Review Dialog.
Review Request #9320 — Created Oct. 24, 2017 and submitted — Latest diff uploaded
This fleshes out the Review Dialog's documentation, going into how to
manage (edit and delete) comments, write a header/footer, add General
Comments, and a blurb on adding diff/file attachment comments
(referencing the correct docs for those).
Screenshots were added to help show off the different aspects of the
Built the docs. No errors, except for references to the General Comments
docs, which don't yet exist (they're in progress).
Checked for spelling errors.
Checked that Retina/non-Retina screenshots were pixel-aligned.