added instructions on how modifiers are stored in the save files and how to go back to default

lgsm/config-default/config-lgsm/vhserver/_default.cfg

@@ -44,8 +44,11 @@ crossplay=""
 #   Sets a world modifier checkbox key.
 #   Command line parameter: -setkey
 #   Valid values: nobuildcost, playerevents, passivemobs, nomap
-# Example of a cobination of modifiers where we set no raids, very hard portals and no map run:
+# Example of a combination of modifiers where we set no raids, very hard portals and no map run:
 #   modifiers="-modifier raids none -modifier portals veryhard -setkey nomap"
+# NOTE: removing world modifiers will NOT reset them to default. the modifiers are stored in the world save file (.fwl)
+#   To go back to default you need to launch the server with the following parameter at least once:
+#.  modifiers="-preset normal"
 
 worldmodifiers=""