Update README.md

Added sponsor note.

README.md

@@ -23,6 +23,8 @@ This is a 120b frankenmerge created by interleaving layers of [miqu-1-70b-sf](ht
 
 Inspired by [goliath-120b](https://huggingface.co/alpindale/goliath-120b).
 
+Thanks for the support, [CopilotKit](https://github.com/CopilotKit/CopilotKit) - the open-source platform for building in-app AI Copilots into any product, with any LLM model. Check out their GitHub.
+
 ## Prompt template: Mistral
 
 ```