Fix wrong link to sccurl entity

Author: tomschr

xml/planning.xml

@@ -61,7 +61,7 @@
       <listitem>
         <para>
           How will you get regular updates? All patches are provided online for
-          registered users in the <link xlink:href="&#xF6;&#xF6;&#xF6;sccurl;">&scc;</link>.
+          registered users in the <link xlink:href="&sccurl;">&scc;</link>.
         </para>
       </listitem>
       <listitem>