add homepage icon

Author: codefrau

index.html

@@ -64,7 +64,7 @@ <h1>SqueakJS</h1>
         </ul>
       </nav>
       <section>
-        <img src="demo/icon.png" align="right">
+        <img src="squeakjs.png" align="right">
         <h2>About</h2>
         <p>SqueakJS executes Squeak in a web page without a plugin.
         It is a fully capable virtual machine implemented in pure JavaScript running unmodified Squeak images.