Add missing <td> tag

web/quilt/quilt.html

@@ -3,7 +3,7 @@
 
         <tr>
             <td><a href="https://hub.xpub.nl/chopchop/~thijsoid/quilt/volumeplotting.html">volumeplotting</a></td>
-            <a href="https://hub.xpub.nl/chopchop/~thijsoid/">thijs</a>
+            <td><a href="https://hub.xpub.nl/chopchop/~thijsoid/">thijs</a></td>
             <td><a href="https://issue.xpub.nl/23/quilt/documentation-communication.html">Communication
                     Documentation</a></td>
             <td></td>