update readme

README.md

 # sureness - 面向restful api的权限认证  
 
-> A simple and efficient open-source java security framework that focus on the protection of restful api.
+> A simple and efficient open-source jvm security framework that focus on the protection of restful api.
 
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html) 
 ![GitHub pull request check contexts](https://img.shields.io/github/status/contexts/pulls/tomsun28/sureness/8?label=pull%20checks) 

README_EN.md

 # `sureness`  
 
-> A simple and efficient open-source security framework that focus on the protection of restful api.
+> A simple and efficient open-source jvm security framework that focus on the protection of restful api.
 
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html) 
 ![GitHub pull request check contexts](https://img.shields.io/github/status/contexts/pulls/tomsun28/sureness/8?label=pull%20checks) 

samples/README.md

 ### 各个框架通过集成sureness来实现权限控制样例  
 
-这里实现了我们除了spring外常用的其他java框架集成sureness的样例，方便参考    
+这里实现了我们除了spring外常用的其他jvm框架集成sureness的样例，方便参考    
 
 > only support servlet like tomcat jetty and more