Add tag, add link to paper

Hi @tanhshuai0219 congrats on the ECCV Oral!

This PR improves the model card by adding a link to the paper page: https://huggingface.co/papers/2404.01647, as well as adding an appropriate "talking-head-generation" tag.

This enables people to find your work more easily.

Cheers!

README.md

@@ -1,3 +1,12 @@
----
-license: apache-2.0
----
+---
+license: apache-2.0
+tags:
+- talking-head-generation
+---
+
+This repository contains the checkpoints used in the paper [EDTalk: Efficient Disentanglement for Emotional Talking Head Synthesis](https://huggingface.co/papers/2404.01647).
+
+## Resources
+
+Project page: https://tanshuai0219.github.io/EDTalk/
+Code: https://github.com/tanshuai0219/EDTalk