Reword treeclosed documentation

Author: flip1995

homu/html/index.html

@@ -55,8 +55,8 @@ <h3>Commands</h3>
             <li><code>delegate=NAME</code>: Allow NAME to issue all homu commands for this PR.</li>
             <li><code>delegate+</code>: Delegate to the PR owner.</li>
             <li><code>delegate-</code>: Remove the delegatee.</li>
-            <li><code>treeclosed=NUMBER</code>: Any PR <code>NUMBER</code> will now not test. Please consider if <i>you</i> should really be doing this.</li>
-            <li><code>treeclosed-</code>: Undo a previous <code>treeclose=NUMBER</code>.</li>
+            <li><code>treeclosed=NUMBER</code>: Any PR below priority <code>NUMBER</code> will not test. Please consider if <i>you</i> really want to do this.</li>
+            <li><code>treeclosed-</code>: Undo a previous <code>treeclosed=NUMBER</code>.</li>
         </ul>
 
         <h4>Examples</h4>