Merge pull request #984 from luizcieslak/master

docs(auth): missing AngularFireAuthModule import

Author: jamesdaniels

docs/Auth-with-Ionic3-Angular4.md

@@ -191,6 +191,7 @@ import { HomePage } from '../pages/home/home';
 
 import { AngularFireModule } from 'angularfire2';
 import { AngularFireDatabaseModule } from 'angularfire2/database';
+import { AngularFireAuthModule } from 'angularfire2/auth';
 
 export const firebaseConfig = {
   apiKey: "xxxxxxxxxx",
@@ -209,7 +210,8 @@ export const firebaseConfig = {
     BrowserModule,
     IonicModule.forRoot(MyApp),
     AngularFireModule.initializeApp(firebaseConfig),
-    AngularFireDatabaseModule
+    AngularFireDatabaseModule,
+    AngularFireAuthModule
   ],
   bootstrap: [IonicApp],
   entryComponents: [