Format map.fire call to match breaking change

ref #766

Author: tristen

README.md

@@ -84,7 +84,7 @@ Install dependencies, build the source files and crank up a server via:
 ```
 git clone [email protected]:mapbox/mapbox-gl-draw.git
 npm install
-npm start & open http://localhost:9966/debug/?access_token=<token>
+npm start & open http://localhost:9967/debug/?access_token=<token>
 ```
 
 ### Testing

debug/index.html

@@ -66,7 +66,6 @@
   };
   return args;
 }, args);
-
   var map = new mapboxgl.Map({
     container: 'map',
     zoom: args.zoom || 1,