* doc/skins/skins2-howto.xml: Added the playlist.sort() action, which was

   missing in the doc

doc/skins/skins2-howto.xml

@@ -739,6 +739,9 @@ difficulty to understand how VLC skins work.</para>
   <listitem><para>
     <emphasis>playlist.previous()</emphasis>: Go to the previous playlist item.
   </para></listitem>
+  <listitem><para>
+    <emphasis>playlist.sort()</emphasis>: Sort the playlist alphabetically.
+  </para></listitem>
   <listitem><para>
     <emphasis>playlist.setRandom(true)</emphasis>: Play the playlist items in random order.
   </para></listitem>