fix README, add Version Management

Author: ruanshudong

README.md

@@ -26,6 +26,12 @@ For now it supports following languages:
 - PHP
 - Go
 
+## Version Management
+ 
+Tars is composed of many modules, scattered in many warehouses, and the basic framework version and language version can develop independently. In view of this, from version 2.1.0, the Framework version tag is printed on the tarsframework warehouse, no longer reflected in the tars warehouse
+
+In addition, each component will have its own version. When there is a version dependency specification, each component will have its own version
+
 ## Installation 
 
 1. If you are new to Tars, please read documentation [installation](https://tarscloud.github.io/TarsDocs_en/installation).

README.zh.md

@@ -35,6 +35,13 @@ Tars详细介绍参见 [目录](https://tarscloud.github.io/TarsDocs/SUMMARY.htm
 * PHP
 * Go
 
+### 版本管理
+
+Tars由多种模块组成, 分散在多个仓库中, 并且基础框架版本和语言版本可以独立发展, 鉴于此, 从2.1.0版本开始, 框架的版本TAG打在TarsFramework仓库上, 不再体现在Tars这个仓库上.
+
+另外各个组件会有自己独立的版本, 当有版本依赖说明时, 各组件会独立说明.
+
+
 ### License
 
 Tars的开源协议为BSD-3-Clause，详情参见 [LICENSE](https://tarscloud.github.io/TarsDocs/license.html)。