Update README.md

README.md

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 # Model Card for Diffuman4D
 
-[**Project Page**](https://diffuman4d.github.io/) | [**Repository**](https://github.com/zju3dv/Diffuman4D) | [**Paper**](https://arxiv.org/abs/2507.13344)
+[**Project Page**](https://diffuman4d.github.io/) | [**Code**](https://github.com/zju3dv/Diffuman4D) | [**Paper**](https://arxiv.org/abs/2507.13344)
 
 > The official model repo for Diffuman4D: 4D Consistent Human View Synthesis from Sparse-View Videos with Spatio-Temporal Diffusion Models.
 
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 Diffuman4D enables high-fidelity free-viewpoint rendering of human performances from sparse-view videos.
 
+## Usage
+
+See the [GitHub repo](https://github.com/zju3dv/Diffuman4D) for detailed usage.
+
 ## Cite
 
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