Cleaned bottom of page styling in todoApp example

Author: jacobawenger

examples/todoApp/index.html

@@ -43,6 +43,7 @@ <h2>React + Plain Firebase</h2>
             <h2>React + ReactFireMixin</h2>
             <div id="todoApp3"></div>
         </div>
+        <div style="clear: both; margin-bottom: 10px;"></div>
     </div>
   </body>
 </html>