Update README.md

Updating to link to GGUF quants

README.md

@@ -136,6 +136,9 @@ If you save this as a .json file, you can import it directly into Silly Tavern.
 }
 ```
 
+### Quantizations
+* [Artefact2](https://huggingface.co/Artefact2) has kindly provided [GGUF quants here](https://huggingface.co/Artefact2/Midnight-Rose-70B-v1.0-GGUF).
+
 ### Licence and usage restrictions
 
 Llama2 license inherited from base models, plus restrictions applicable to [Dreamgen/Opus](https://huggingface.co/dreamgen/opus-v0.5-70b).