Edited wiki page through web user interface.

wiki/PlanningAuthoritiesList.wiki

@@ -19,4 +19,5 @@ The list of authorities I am getting them from is here http://www.theplanningdir
 || K || [PlanningAuthoritiesK] ||
 || L || [PlanningAuthoritiesL] ||
 || M || [PlanningAuthoritiesM] ||
-|| N || [PlanningAuthoritiesN] ||
+|| N || [PlanningAuthoritiesN] ||
+|| O || [PlanningAuthoritiesO] ||