update license link

README.md

@@ -156,13 +156,13 @@ We strongly warn against the use of the XVERSE-7B-Chat model for producing or sp
 
 ## 模型开源协议
 
-使用本仓库的源码需要遵循 [Apache-2.0](https://github.com/xverse-ai/XVERSE-7B/blob/main/LICENSE) 开源协议，使用 XVERSE-7B-Chat 的模型权重则需要遵循[模型许可协议](MODEL_LICENSE.pdf)。
+使用本仓库的源码需要遵循 [Apache-2.0](https://github.com/xverse-ai/XVERSE-7B/blob/main/LICENSE) 开源协议，使用 XVERSE-7B-Chat 的模型权重则需要遵循[模型许可协议](https://github.com/xverse-ai/XVERSE-7B/blob/main/MODEL_LICENSE.pdf)。
 
 XVERSE-7B-Chat 模型权重对学术研究**完全开放**，并且支持**免费商用**，商用需申请商业使用授权，可以发送邮件到 <opensource@xverse.cn> 进行申请。
 
 ## Open Source License
 
-The use of the source code in this repository must follow the [Apache-2.0](https://github.com/xverse-ai/XVERSE-7B/blob/main/LICENSE) open-source license, while the use of the model weights of XVERSE-7B-Chat needs to adhere to the [Model License Agreement](MODEL_LICENSE.pdf).
+The use of the source code in this repository must follow the [Apache-2.0](https://github.com/xverse-ai/XVERSE-7B/blob/main/LICENSE) open-source license, while the use of the model weights of XVERSE-7B-Chat needs to adhere to the [Model License Agreement](https://github.com/xverse-ai/XVERSE-7B/blob/main/MODEL_LICENSE.pdf).
 
 The XVERSE-7B-Chat model weights are **fully open** to academic research and support **free commercial use**. Commercial use requires an application for a commercial use license by sending an email to <opensource@xverse.cn>.