doc(readme): update README.md.

README.md

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+---
+license: mit
+language:
+- en
+base_model:
+- Wan-AI/Wan2.1-I2V-14B-480P
+pipeline_tag: image-to-video
+library_name: diffusers
+---
+
+<div align="center">
+<img src='https://github.com/TencentARC/ToonComposer/raw/main/samples/ToonComposer-Icon.png' width='120px'>
+</div>
+
+<p align="center"> <b> ToonComposer: Streamlining Cartoon Production with Generative Post-Keyframing </b> </p>
+
+<p align="center"> <a href='https://lg-li.github.io/project/tooncomposer'><img src='https://img.shields.io/badge/Project-Page-Green'></a> &nbsp;
+ <a href='https://huggingface.co/TencentARC/ToonComposer'><img src='https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face-Model-blue'></a> &nbsp;
+ <a href="https://arxiv.org/abs/2508.10881"><img src="https://img.shields.io/static/v1?label=ArxivPreprint&message=ToonComposer&color=red&logo=arxiv"></a> &nbsp;
+ <a href="https://github.com/TencentARC/ToonComposer"><img src="https://img.shields.io/static/v1?label=Github&message=ToonComposer&color=black&logo=github"></a>
+</p>
+
+<div align="center">
+<img src='https://github.com/TencentARC/ToonComposer/raw/main/samples/ToonComposer-TLDR.jpg' width='550px'>
+</div>
+
+Traditional cartoon/anime production is time-consuming, requiring skilled artists for keyframing, inbetweening, and colorization.
+ToonComposer streamlines this with generative AI, turning hours of manual work of inbetweening and colorization into a single, seamless process. Visit our [project page](https://lg-li.github.io/project/tooncomposer) and read our [paper](https://arxiv.org/abs/2508.10881) for more details.
+This HF model repo provides model weights of ToonComposer. Codes are available at [our GitHub repo](https://github.com/TencentARC/ToonComposer).
+
+## Citation
+
+If you find ToonComposer useful, please consider citing:
+
+```
+@article{li2025tooncomposer,
+  title={ToonComposer: Streamlining Cartoon Production with Generative Post-Keyframing},
+  author={Li, Lingen and Wang, Guangzhi and Zhang, Zhaoyang and Li, Yaowei and Li, Xiaoyu and Dou, Qi and Gu, Jinwei and Xue, Tianfan and Shan, Ying},
+  journal={arXiv preprint arXiv:2508.10881},
+  year={2025}
+}
+```
+