update

Author: FutureUnreal

docs/README.md

@@ -158,13 +158,6 @@ all-in-rag/
 - 📚 **文档改进**：帮助完善文档内容和示例代码
 - ⚡ **代码贡献**：提交 [Pull Request](https://github.com/datawhalechina/all-in-rag/pulls) 改进项目
 
-### 贡献指南
-1. Fork 本仓库
-2. 创建你的特性分支 (`git checkout -b feature/AmazingFeature`)
-3. 提交你的修改 (`git commit -m 'Add some AmazingFeature'`)
-4. 推送到分支 (`git push origin feature/AmazingFeature`)
-5. 打开一个 Pull Request
-
 ## Star History
 
 [![Star History Chart](https://api.star-history.com/svg?repos=datawhalechina/all-in-rag&type=Date)](https://star-history.com/#datawhalechina/all-in-rag&Date)