Add IPv6 to quick instructions

index.html

@@ -161,7 +161,8 @@
                 <code class="code">CNAME [[<i>branch</i>.]<i>repo</i>.]<i>user</i>.codeberg.page</code>
                 <br><br>
                 Or for zone roots where CNAME doesn't work:<br>
-                <code class="code">ALIAS codeberg.page</code> (or <code class="code">A 217.197.91.145</code>)<br>
+                <code class="code">ALIAS codeberg.page</code><br>
+                (or <code class="code">A 217.197.91.145</code> &amp; <code class="code">AAAA 2001:67c:1401:20f0::1</code>)<br>
                 <code class="code">TXT [[<i>branch</i>.]<i>repo</i>.]<i>user</i>.codeberg.page</code>
               </p>
             </div>