table align center not working in github code example

Example: table align center not working in github

<table>
  <tbody>
    <tr>
      <td align="center">Key Features<br>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>    
        <span>  </span>
      </td>
      <td align="center">Examples<br>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>        
        <span>        </span>
        <span>        </span>
        <span>  </span>
      </td>
      <td align="center">Supported Methods<br>
        <span>        </span>
        <span>        </span>
        <span>        </span>
        <span>        </span>    
        <span>        </span>
        <span>        </span>
        <span>        </span>     
        <span>  </span>        
      </td>
    </tr>
  </tbody>
</table>

Tags:

Misc Example