Update "My Account" documentation.

Review Request #9349 — Created Nov. 6, 2017 and submitted — Latest diff uploaded

Information

Review Board
release-3.0.x
f66c1d4...

Reviewers

This update fixes our docs to reflect the new layout of the pages, and
includes new sections about avatars, OAuth tokens, and OAuth
applications.

  • Built HTML, checked output.
  • Spellcheck.