Update the documentation on publishing reviews.

Review Request #9319 — Created Oct. 24, 2017 and discarded

Review Board

The documentation has been extended to cover how to publish a review
only to the submitter, and how that impacts notifications for the
review. It also adds screenshots showing the Publish Review button with
and without the To Submitter Only option on the Publishing Reviews page,
and shows the screenshot of the banner on the Draft Banner page.

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.

Review request changed

Status: Discarded