Windrose: add verbiage to World Island ID setting

Author: Greelan

windroseconfig.json

@@ -16,13 +16,12 @@
         "DisplayName": "World Island ID",
         "Category": "Windrose:stadia_controller",
         "Subcategory": "Server:dns:1",
-        "Description": "Sets the ID of world to load on server start. It must match the ID in that world's 'WorldDescription.json' file. Empty = new world (the world ID generated for that world can be imported from 'R5/ServerDescription.json' into this setting)",
+        "Description": "Sets the ID of an existing world to load on server start. It must match the ID in that world's 'WorldDescription.json' file. Empty = new world created on start - you MUST import the world ID generated for that world from 'R5/ServerDescription.json' into this setting for that world to load on next start",
         "Keywords": "world,id,worldId,worldislandid",
         "FieldName": "WorldIslandId",
         "InputType": "text",
         "ParamFieldName": "$.ServerDescription_Persistent.WorldIslandId",
         "DefaultValue": "",
-        "Placeholder": "DB57768A8A7746899683D0EEE91F97BF",
         "EnumValues": {}
     },
     {