update README

README.md

@@ -1,5 +1,5 @@
 [![Build Status](https://travis-ci.org/ithewei/libhv.svg?branch=master)](https://travis-ci.org/ithewei/libhv)
-[![Platform](https://img.shields.io/badge/Platform-Linux%20%7C%20Windows%20%7C%20Mac-green)](.travis.yml)
+[![Platform](https://img.shields.io/badge/Platform-Linux%20%7C%20Windows%20%7C%20Mac-blue)](.travis.yml)
 
 [中文版](readme_cn.md)
 

readme_cn.md

@@ -1,5 +1,5 @@
 [![Build Status](https://travis-ci.org/ithewei/libhv.svg?branch=master)](https://travis-ci.org/ithewei/libhv)
-[![Platform](https://img.shields.io/badge/Platform-Linux%20%7C%20Windows%20%7C%20Mac-green)](.travis.yml)
+[![Platform](https://img.shields.io/badge/Platform-Linux%20%7C%20Windows%20%7C%20Mac-blue)](.travis.yml)
 
 [English version](README.md)
 
@@ -271,8 +271,6 @@ cd echo-servers
 - hlog.h:        日志
 - hbuf.h:        缓存
 - hstring.h:     字符串
-- hvar.h:        var变量
-- hobj.h:        对象基类
 - hfile.h:       文件类
 - hdir.h:        ls实现
 - hurl.h:        URL相关