Added another test endpoint.

osrs-toolbox/APIs/Wiki/Wiki.cs

@@ -10,6 +10,6 @@ namespace osrs_toolbox
     public static class Wiki
     {
         private static string BaseEndpoint = @"https://oldschool.runescape.wiki/api.php?format=json&formatversion=2";
-
+        private static string ListMonstersEndpoint = @"&action=query&list=categorymembers&cmtitle=Category:Monsters";
     }
 }