Link models to paper

This PR ensures the models can be viewed from https://huggingface.co/papers/2408.03209.

Cheers,
Niels
Open-source @ HF

README.md

@@ -7,4 +7,6 @@ IP-Adapter-Instruct
 
 ![image/png](https://cdn-uploads.huggingface.co/production/uploads/63357214eb6132ca653020e7/TBQx7RR9FQutOCG41Dvh0.png)
 
-see github: https://github.com/unity-research/IP-Adapter-Instruct
+see github: https://github.com/unity-research/IP-Adapter-Instruct
+
+Paper: https://arxiv.org/abs/2408.03209