XEP-0205: Fix a namespace typo in an example.

Thanks Zash and Lyn for noticing!

xep-0205.xml

@@ -21,6 +21,12 @@
   <supersededby/>
   <shortname>N/A</shortname>
   &stpeter;
+  <revision>
+    <version>1.0.1</version>
+    <date>2018-11-21</date>
+    <initials>egp</initials>
+    <remark><p>Fix a typo in an example, namespace 'urn:xmpperrors' → 'urn:xmpp:errors'.</p></remark>
+  </revision>
   <revision>
     <version>1.0</version>
     <date>2009-01-07</date>
@@ -114,7 +120,7 @@
   </bind>
   <error type='cancel'>
     <resource-constraint xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
-    <resource-limit-exceeded xmlns='urn:xmpperrors'/>
+    <resource-limit-exceeded xmlns='urn:xmpp:errors'/>
   </error>
 </iq>
 ]]></example>