Add link to CM tutorial

Author: jan-tennert

README.md

@@ -154,6 +154,7 @@ __For versions below 3.0.0:__
 # Videos
 
 - [Getting started with Android and Supabase](https://www.youtube.com/watch?v=_iXUVJ6HTHU) by the official Supabase YouTube channel
+- [Sign in with Google on Android using Credential Manager](https://www.youtube.com/watch?v=P_jZMDmodG4) by the official Supabase YouTube channel
 - [Getting started with Supabase on Android](https://www.youtube.com/watch?v=SGr73sWMX6w) (by [Eric Ampire](https://www.youtube.com/@eric-ampire))
 - [Supabase | Jetpack Compose | Android | 2023](https://www.youtube.com/playlist?list=PL91kV_wdjTlcGQdcZzkuid094as5eUlwU) (by [YoursSohailYT](https://www.youtube.com/@YoursSohailYT))