add support for data-trim attribute on code elements (closes #419)

1 files changed, 2 insertions, 2 deletions

diff --git a/README.md b/README.md
index 93e837c..fff69c0 100644
--- a/README.md
+++ b/README.md
@@ -332,11 +332,11 @@ Reveal.addEventListener( 'fragmenthidden', function( event ) {
 
 ### Code syntax highlighting
 
-By default, Reveal is configured with [highlight.js](http://softwaremaniacs.org/soft/highlight/en/) for code syntax highlighting. Below is an example with clojure code that will be syntax highlighted:
+By default, Reveal is configured with [highlight.js](http://softwaremaniacs.org/soft/highlight/en/) for code syntax highlighting. Below is an example with clojure code that will be syntax highlighted. When the `data-trim` attribute is present surrounding whitespace is automatically removed.
 
 ```html
 <section>
-	<pre><code>
+	<pre><code data-trim>
 (def lazy-fib
   (concat
    [0 1]