Update README.md

Update the readme

README.md

@@ -3,4 +3,20 @@ license: apache-2.0
 language:
 - en
 pipeline_tag: image-to-3d
----
+---
+
+This is the model parameters of [CharacterGen](https://github.com/zjp-shadow/CharacterGen).
+Thanks for downloading the checkpoint~
+If you find our work helpful, please consider citing
+
+```bibtex
+@article
+{peng2024charactergen,
+title ={CharacterGen: Efficient 3D Character Generation from Single Images with Multi-View Pose Canonicalization},
+author ={Hao-Yang Peng and Jia-Peng Zhang and Meng-Hao Guo and Yan-Pei Cao and Shi-Min Hu},
+journal ={ACM Transactions on Graphics (TOG)},
+year ={2024},
+volume ={43},
+number ={4},
+doi ={10.1145/3658217}
+}