chore: update readme.md of Flutter native Google auth example

examples/auth/flutter-native-google-auth/README.md

@@ -1,5 +1,23 @@
-# Flutter authentication with Google and Supabase
+# Flutter native Google auth with Supabase
 
-A simple Flutter application with native Google login capabilities on iOS and Android.
+A simple Flutter application with native Google login capabilities on iOS and Android using Supabase auth.
 
-You can find the full video guide [here](https://www.youtube.com/watch?v=YtvxRgGouwg) to learn the steps to implement native Google Login on your Flutter application using Supabase auth.
+- Full tutorial article [here](https://supabase.com/blog/flutter-authentication)
+- Full video guide [here](https://www.youtube.com/watch?v=YtvxRgGouwg)
+
+## Getting Started
+
+- Create a new Supabase project [here](https://database.new)
+- Add your Supabase credentials to `lib/main.dart`
+- Obtain Google API client ID for [Android](https://developers.google.com/identity/sign-in/android/start-integrating#configure_a_project) and [iOS](https://developers.google.com/identity/sign-in/ios/start-integrating#get_an_oauth_client_id)
+- Add the client IDs in Supabase dashboard under `Auth -> Providers -> Google -> Authorized Client IDs` and turn on `Enable Sign in with Google`
+- Find the `clientId` variable in `lib/screens/login_screen.dart` and paste the two client IDs
+- For android open `android/app/build.gradle` file, locate `appAuthRedirectScheme` variable and replace the value with your reversed DNS form of the Android client ID. For example, if your client ID is `1234567890-abc123def456.apps.googleusercontent.com`, then the value should be `com.googleusercontent.apps.1234567890-abc123def456`
+- Run the app on iOS or Android and test the login flow 🚀
+
+## Resources
+
+- [Flutter Authorization with RLS article](https://supabase.com/blog/flutter-authorization-with-rls)
+- [Flutter Tutorial: building a Flutter chat app article](https://supabase.com/blog/flutter-tutorial-building-a-chat-app)
+- [Supabase docs for Flutter](https://supabase.com/docs/reference/dart/introduction)
+- [Supabase Flutter YouTube playlist](https://www.youtube.com/watch?v=F2j6Q-4nLEE&list=PL5S4mPUpp4OtkMf5LNDLXdTcAp1niHjoL)

examples/auth/flutter-native-google-auth/lib/main.dart

@@ -4,7 +4,6 @@ import 'package:supabase_flutter/supabase_flutter.dart';
 
 void main() async {
   /// TODO: update Supabase credentials with your own
-  ///
   await Supabase.initialize(
     url: 'YOUR_SUPABASE_URL',
     anonKey: 'YOUR_ANON_KEY',