Add the slackin.js static route

now.json

@@ -21,6 +21,7 @@
   ],
   "routes": [
     { "src": "/assets/(.*)", "dest": "$1" },
+    { "src": "/slackin.js", "dest": "assets/badge.js" },
     { "src": "/(.*)", "dest": "bin/slackin" }
   ]
 }