Merge pull request #1156 from sofia-riese/patch-1

docs: add license instructions

README.md

@@ -171,3 +171,7 @@ crash -h     # View the list of command help
 - FAQ: [Juewuy's Blog](https://juewuy.github.io/chang-jian-wen-ti/)
 - Changelog: [Release History](https://github.com/juewuy/ShellCrash/releases)
 - Discussion: [Telegram Group](https://t.me/ShellClash)
+
+## :scroll: License
+
+This project is licensed under the [GNU General Public License v3.0](LICENSE.txt).

README_CN.md

@@ -179,6 +179,12 @@ crash -h     # 查看命令帮助列表
 
 ---
 
+## :scroll: 许可协议
+
+本项目采用[GNU通用公共许可证第3.0版](LICENSE.txt)授权。
+
+---
+
 ## :airplane: 机场推荐
 
 - [**Dler-墙洞**](https://dler.pro/auth/register?affid=89698)，多年稳定运行，功能齐全。