Refactor about.md to clean up HTML structure by removing unnecessary line breaks in the table section.

Author: Min-Yen Kan

_pages/about.md

@@ -447,10 +447,8 @@ We may make slight changes on the allocation for topics and provide alternative
           </p>
     </td>
   </tr>
-
-</tbody></table>
-
-
+</tbody>
+</table>
 
 
 ## Organizers {#org}