Add link to Swift Radio Android in README

Author: fethica

README.md

@@ -5,6 +5,8 @@
 
 Open-source radio station app built entirely in Swift. Used by **80+ apps** on the App Store.
 
+**Looking for Android?** See [Swift Radio Android](https://github.com/fethica/Swift-Radio-Android) — same station format, native Kotlin and Jetpack Compose.
+
 <p align="center">
     <img alt="Swift Radio" src="swift-radio-preview.png" width="700">
 </p>