From fe4315e912f708e08122027632e56ddf9a946e15 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Sun, 14 Jul 2013 17:47:49 -0400
Subject: [PATCH] readme update for #505

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index f997daea..52c3fc30 100644
--- a/README.md
+++ b/README.md
@@ -370,6 +370,8 @@ The display order of fragments can be controlled using the ```data-fragment-inde
 
 When a slide fragment is either shown or hidden reveal.js will dispatch an event.
 
+Some libraries, like MathJax (see #505), get confused by the initially hidden fragment elements. Often times this can be fixed by calling their update or render function from this callback.
+
 ```javascript
 Reveal.addEventListener( 'fragmentshown', function( event ) {
 	// event.fragment = the fragment DOM element