chore: add doc for version choose

Author: yangbodong22011

README-CN.md

@@ -28,7 +28,11 @@
 
 最新版本查阅：[这里](https://s01.oss.sonatype.org/#nexus-search;quick~alibabacloud-tairjedis-sdk)  
 JavaDoc地址：[这里](https://javadoc.io/doc/com.aliyun.tair/alibabacloud-tairjedis-sdk/latest/index.html)
-
+## 如何选择版本
+1. 3.x版本与5.x版本的区别是什么？
+> 3.x版本依赖Jedis 3.6.0版本，5.x版本依赖[valkey-java](https://github.com/valkey-io/valkey-java)的5.3.0版本，两者之间存在不兼容，详见[3to5-CN.md](https://github.com/tair-opensource/alibabacloud-tairjedis-sdk/blob/master/docs/3to5-CN.md)。  
+2. 我应该如何选择版本?
+> 如果您是新用户，建议直接使用最新的 5.x 版本，如果您已经使用了3.x版本，可以继续使用3.x最新版本，我们会保证功能相关的代码移植回去。
 # Example
 参考 [tests/example/*](https://github.com/alibaba/alibabacloud-tairjedis-sdk/tree/master/src/test/java/com/aliyun/tair/tests/example) 下完整示例。
 

README.md

@@ -30,7 +30,12 @@ A client packaged based on [Jedis](https://github.com/xetorthio/jedis) that oper
 ```
 
 The latest verison：[here](https://s01.oss.sonatype.org/#nexus-search;quick~alibabacloud-tairjedis-sdk)  
-JavaDoc: [here](https://javadoc.io/doc/com.aliyun.tair/alibabacloud-tairjedis-sdk/latest/index.html)
+JavaDoc: [here](https://javadoc.io/doc/com.aliyun.tair/alibabacloud-tairjedis-sdk/latest/index.html)  
+## How to choose the version
+1. What is the difference between 3.x and 5.x?
+> The difference between version 3.x and version 5.x is that version 3.x depends on Jedis version 3.6.0, and version 5.x depends on version 5.3.0 of [valkey-java](https://github.com/valkey-io/valkey-java). There is incompatibility between the two. For details, see [3to5.md](https://github.com/tair-opensource/alibabacloud-tairjedis-sdk/blob/master/docs/3to5.md).  
+2. How should I choose the version? 
+> If you are a new user, it is recommended to use the latest version 5.x directly. If you have already used version 3.x, you can continue to use the latest version of 3.x. We will ensure that the function-related code is ported back.
 
 # Example
 Refer to the complete example under [tests/example/*](https://github.com/alibaba/alibabacloud-tairjedis-sdk/tree/master/src/test/java/com/aliyun/tair/tests/example)