Add pipeline tag

This PR adds the `pipeline_tag` to ensure the model can be found at https://huggingface.co./models?pipeline_tag=text-to-image. It also adds
`library_name: diffusers` to ensure the "how to use" button appears on the top right.

README.md

@@ -1,3 +1,9 @@
+---
+license: mit
+library_name: diffusers
+pipeline_tag: text-to-image
+---
+
 # Deep Compression Autoencoder for Efficient High-Resolution Diffusion Models
 
 [[paper](https://arxiv.org/abs/2410.10733)] [[GitHub](https://github.com/mit-han-lab/efficientvit)]
@@ -110,4 +116,4 @@ If DC-AE is useful or relevant to your research, please kindly recognize our con
   journal={arXiv preprint arXiv:2410.10733},
   year={2024}
 }
-```
+```