update README.md.

修改license

Signed-off-by: Jerry <chenjingchun@foxmail.com>

README.md

@@ -5,7 +5,7 @@
 
 [![star](https://gitee.com/zuohuaijun/Admin.NET/badge/star.svg?theme=dark)](https://gitee.com/zuohuaijun/Admin.NET/stargazers)
 [![fork](https://gitee.com/zuohuaijun/Admin.NET/badge/fork.svg?theme=dark)](https://gitee.com/zuohuaijun/Admin.NET/members)
-[![GitHub license](https://img.shields.io/badge/license-Apache2-yellow)](https://gitee.com/dotnetchina/Furion/blob/master/LICENSE)
+[![GitHub license](https://img.shields.io/badge/license-MIT-yellow)](https://gitee.com/dotnetchina/Furion/blob/master/LICENSE)
 
 </div>