Homestyx hydra

R1:fe4dcd4063b3

Add an icon rule to Remarkup

Summary: Fixes T5468.

Test Plan: See screenshots.

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5468

Differential Revision: https://secure.phabricator.com/D9722
Repository: R1 hydra
Commit Date: Jun 25 2014