Updated Perl EVENT_ZONE (markdown)

Perl-EVENT_ZONE.md

@@ -9,5 +9,18 @@ sub EVENT_ZONE {
 	quest::say($target_zone_id); # returns int
 }
 ```
+### Functionality Explained
+
+EVENT_ZONE is triggered when a player zones (not to be confused with perl EVENT_ENTERZONE).
+
+### EVENT_ZONE in use
+
+```perl
+sub EVENT_ZONE {
+
+     # Once you leave the zone, remove the compass mark (IE for adventure location)
+     $client->ClearCompassMark();
+}
+```
 
 Generated On 2018-01-15T22:07:30-08:00