use minified version of js

index.html

@@ -326,7 +326,7 @@ function linkify( selector ) {
 				scripts.push( 'lib/js/data-markdown.js' );
 			}
 
-			scripts.push( 'js/reveal.js' );
+			scripts.push( 'js/reveal.min.js' );
 
 			// If we're runnning the notes server we need to include some additional JS
 			// TODO Is there a better way to determine if we're running the notes server?