R1:4f1ca64159ee

Fixed rendering markup

Summary:
Description for mock renders now.
Inline comments (on side) render now.

Test Plan: {F34021}

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin, chad

Maniphest Tasks: T2597

Differential Revision: https://secure.phabricator.com/D5138