Improve model card: Add pipeline tag, license and link to project page

This PR improves the model card by adding the `image-to-image` pipeline tag, so it can be easily found in the model hub.
It also adds a link to the project page.

README.md

@@ -1,10 +1,15 @@
 ---
 library_name: diffusers
+pipeline_tag: image-to-image
+license: mit
 ---
+
 ## EQ-VAE: Equivariance Regularized Latent Space for Improved Generative Image Modeling
 
 **EQ-VAE** regularizes the latent space of pretrained autoencoders by enforcing equivariance under scaling and rotation transformations. 
 
+Project page: https://eq-vae.github.io/.
+
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 #### Model Description 
 This model is a regularized version of [SD-VAE](https://github.com/CompVis/latent-diffusion). We finetune it with EQ-VAE regularization  for 5 epochs on OpenImages.
@@ -27,4 +32,4 @@ Reconstruction performance of eq-vae-ema on Imagenet Validation Set.
 | **PSNR**   | 25.95     |
 | **LPIPS**  | 0.141     |
 | **SSIM**   | 0.72      |
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+---