Update sidebar.js

dropdown -> sidebar

src/modules/sidebar.js

@@ -1,5 +1,5 @@
 /*
- * # Semantic - Dropdown
+ * # Semantic - Sidebar
  * http://github.com/jlukic/semantic-ui/
  *
  *
@@ -510,4 +510,4 @@ $.fn.sidebar.settings = {
 
 };
 
-})( jQuery, window , document );
+})( jQuery, window , document );