Edited wiki page through web user interface.

wiki/PlanningAuthoritiesList.wiki

@@ -17,4 +17,5 @@ The list of authorities I am getting them from is here http://www.theplanningdir
 || I || [PlanningAuthoritiesI] ||
 || J || [PlanningAuthoritiesJ] ||
 || K || [PlanningAuthoritiesK] ||
-|| L || [PlanningAuthoritiesL] ||
+|| L || [PlanningAuthoritiesL] ||
+|| M || [PlanningAuthoritiesM] ||