Updating the FOSS & Github urls

Author: jamesdaniels

reactfire/package.pub.json

@@ -11,14 +11,14 @@
   },
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/Firebase/reactfire.git"
+    "url": "git+https://github.com/FirebaseExtended/reactfire.git"
   },
   "author": "",
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/Firebase/reactfire/issues"
   },
-  "homepage": "https://firebaseopensource.com/projects/firebase/reactfire/",
+  "homepage": "https://firebaseopensource.com/projects/firebaseextended/reactfire/",
   "dependencies": {
     "rxfire": "^3.6.3",
     "rxjs": "^6.4.0"