the model is supported by TGI

I've just deployed a TGI HF endpoint and it worked, so it seems like the model is supported by TGI. The support of Mixtral is also mentioned in the [TGI docs](https://huggingface.co/docs/text-generation-inference/supported_models).

README.md

@@ -242,7 +242,7 @@ It is strongly recommended to use the text-generation-webui one-click-installers
 <!-- README_GPTQ.md-use-from-tgi start -->
 ## Serving this model from Text Generation Inference (TGI)
 
-Not currently supported for Mixtral models.
+The model is supported by [TGI](https://huggingface.co/docs/text-generation-inference/supported_models)
 
 <!-- README_GPTQ.md-use-from-tgi end -->
 <!-- README_GPTQ.md-use-from-python start -->