Add authors field to script.json

Author: keithcurtis1

Portal/script.json

@@ -3,6 +3,7 @@
   "script": "Portal.js",
   "version": "1.0.0",
   "description": "# Portal\n\n**Portal** is a script for converting older dynamic lighting maps to modern doors and windows.\nIt also allows for bulk setting of door and window properties",
+  "authors": "keithcurtis",
   "roll20userid": "162065",
   "dependencies": [],
   "modifies": {