doc: Add badges!

Author: laosb

README.md

@@ -1,5 +1,8 @@
 # CropImage
 
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Flaosb%2FCropImage%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/laosb/CropImage)
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Flaosb%2FCropImage%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/laosb/CropImage)
+
 A simple SwiftUI view where user can move and resize an image to a pre-defined size.
 
 Supports iOS 14.0 and above, or macOS Ventura 13.0 and above.