information about oss sdk for go v2.

Author: huiguangjun

README-CN.md

@@ -6,6 +6,12 @@
 
 ## [README in English](https://github.com/aliyun/aliyun-oss-go-sdk/blob/master/README.md)
 
+## 关于 OSS SDK for Go V2
+> - OSS SDK for Go V2([alibabacloud-oss-go-sdk-v2](https://github.com/aliyun/alibabacloud-oss-go-sdk-v2)) 已发布, 是对V1（aliyun-oss-go-sdk）代码库的重大改写。
+> - V2是一个全新的版本，简化了底层操作例如身份验证、自动请求重试及错误处理等；提供了灵活友好的参数配置以及丰富的高级接口，例如分页器、传输管理器 、File-like接口等，全面提升了开发效率和体验。
+> - 开始使用V2，请参见 [开发者指南](https://github.com/aliyun/alibabacloud-oss-go-sdk-v2/blob/master/DEVGUIDE-CN.md)。
+> - 从V1升级为V2，请参见 [迁移指南](https://github.com/aliyun/alibabacloud-oss-go-sdk-v2/blob/master/DEVGUIDE-CN.md#%E8%BF%81%E7%A7%BB%E6%8C%87%E5%8D%97)。
+
 ## 关于
 > - 此Go SDK基于[阿里云对象存储服务](http://www.aliyun.com/product/oss/)官方API构建。
 > - 阿里云对象存储（Object Storage Service，简称OSS），是阿里云对外提供的海量，安全，低成本，高可靠的云存储服务。

README.md

@@ -6,6 +6,12 @@
 
 ## [README in Chinese](https://github.com/aliyun/aliyun-oss-go-sdk/blob/master/README-CN.md)
 
+## About OSS SDK for Go V2
+> - OSS SDK for Go V2([alibabacloud-oss-go-sdk-v2](https://github.com/aliyun/alibabacloud-oss-go-sdk-v2)) has been released, it is a major rewrite of OSS SDK for Go V1 (aliyun-oss-go-sdk).
+> - V2 simplifies underlying operations such as identification authentication, automatic retry of failed requests, and error handling. It provides flexible parameter configuration methods and rich advanced operations, such as paginator, transmission managers, and File-like operations. This comprehensively improves development efficiency and experience.
+> - How to get started with V2, visit [Developer Guide](https://github.com/aliyun/alibabacloud-oss-go-sdk-v2/blob/master/DEVGUIDE.md).
+> - How to migrate to V2, visit [Migration Guide](https://github.com/aliyun/alibabacloud-oss-go-sdk-v2/blob/master/DEVGUIDE.md#migration-guide).
+
 ## About
 > - This Go SDK is based on the official APIs of [Alibaba Cloud OSS](http://www.aliyun.com/product/oss/).
 > - Alibaba Cloud Object Storage Service (OSS) is a cloud storage service provided by Alibaba Cloud, featuring massive capacity, security, a low cost, and high reliability.