Fix Swift Package Index badges after org change

The repo is now in the `google-gemini` GitHub organization instead of `google`. This change broke the Swift Package Index shields.io badges.

Author: andrewheard

README.md

@@ -1,5 +1,5 @@
-[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fgoogle%2Fgenerative-ai-swift%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/google/generative-ai-swift)
-[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fgoogle%2Fgenerative-ai-swift%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/google/generative-ai-swift)
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fgoogle-gemini%2Fgenerative-ai-swift%2Fbadge%3Ftype%3Dswift-versions)](https://swiftpackageindex.com/google-gemini/generative-ai-swift)
+[![](https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2Fgoogle-gemini%2Fgenerative-ai-swift%2Fbadge%3Ftype%3Dplatforms)](https://swiftpackageindex.com/google-gemini/generative-ai-swift)
 
 # Google AI SDK for Swift