update github page index

Author: shimizukawa

index.html

@@ -15,9 +15,7 @@ <h1>Pyxel Sample Apps by shimizukawa</h1>
         </tr>
       </thead>
       <tbody>
-        <tr>
-          <td>{packagename}</td><td><a href="{packagename}.html">Demo</a></td><td><a href="https://github.com/shimizukawa/pyxel-app/tree/master/{packagename}/">Code</a></td>
-        </tr>
+        <tr><td>{packagename}</td><td><a href="{packagename}.html">Demo</a></td><td><a href="https://github.com/shimizukawa/pyxel-app/tree/master/{packagename}/">Code</a></td></tr>
       </tbody>
     </table>
   </body>