Fix typo

examples/timeline/other/usingReact.html

@@ -113,7 +113,7 @@
             render: function() {
                 return <div>
                     <h1>Vis timline with React</h1>
-                    <h2>Using react components for items ang group templates</h2>      
+                    <h2>Using react components for items and group templates</h2>      
 
                     <div id="mytimeline"></div>
                 </div>
@@ -128,4 +128,4 @@
         ReactDOM.render(<VisTimeline />, document.getElementById('root'));
     </script>
   </body>
-</html>
+</html>