Update model card for Sapiens with architecture details

README.md

@@ -25,9 +25,10 @@ Sapiens-0.6B natively support 1K high-resolution inference. The resulting models
 - **Input Image Size:** 1024 x 1024
 - **Patch Size:** 16 x 16
 
-### Model Sources
+### More Sources
 - **Repository:** [https://github.com/facebookresearch/sapiens](https://github.com/facebookresearch/sapiens)
 - **Paper:** [https://arxiv.org/abs/2408.12569](https://arxiv.org/abs/2408.12569)
+- **Demo:** [Sapiens Gradio Spaces](https://huggingface.co/collections/facebook/sapiens-66d22047daa6402d565cb2fc)
 
 ## Uses
 Pretrained 0.6B model can be used for feature extraction, fine-tuning, or as a starting point for training new models.