readme : add Scala 3 bindings repo (ggml-org#2010)

Author: donderom

README.md

@@ -93,6 +93,7 @@ as the main playground for developing new features for the [ggml](https://github
 - Node.js: [hlhr202/llama-node](https://github.com/hlhr202/llama-node)
 - Ruby: [yoshoku/llama_cpp.rb](https://github.com/yoshoku/llama_cpp.rb)
 - C#/.NET: [SciSharp/LLamaSharp](https://github.com/SciSharp/LLamaSharp)
+- Scala 3: [donderom/llm4s](https://github.com/donderom/llm4s)
 
 **UI:**