docs: add Apple SwiftUI project tutorial to Swift resources

Author: mitre88

README.md

@@ -653,6 +653,7 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 ## Swift:
 
 - [Hacking with Swift - Learn Swift by doing 39 projects](https://www.hackingwithswift.com/read)
+- [Apple SwiftUI Tutorials (Build Apps by Creating Real Projects)](https://developer.apple.com/tutorials/swiftui)
 - [Retro first-person shooter from scratch](https://github.com/nicklockwood/RetroRampage)
 
 ## Additional Resources