Updated repository info (#76)

Author: hiranya911

package.json

@@ -2,7 +2,7 @@
   "name": "firebase-admin",
   "version": "5.2.1",
   "description": "Firebase admin SDK for Node.js",
-  "author": "Firebase (https://firebase.google.com/)",
+  "author": "Firebase <[email protected]> (https://firebase.google.com/)",
   "license": "Apache-2.0",
   "homepage": "https://firebase.google.com/",
   "scripts": {
@@ -15,6 +15,10 @@
     "realtime",
     "authentication"
   ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/firebase/firebase-admin-node"
+  },
   "main": "lib/index.js",
   "files": [
     "lib/",