Update README

Author: yndu13

README-CN.md

@@ -10,8 +10,8 @@
 [![Java CI with Maven](https://github.com/aliyun/aliyun-openapi-java-sdk/actions/workflows/maven.yml/badge.svg)](https://github.com/aliyun/aliyun-openapi-java-sdk/actions/workflows/maven.yml)
 [![codecov](https://codecov.io/gh/aliyun/aliyun-openapi-java-sdk/graph/badge.svg?token=4LHp6BfqKF)](https://codecov.io/gh/aliyun/aliyun-openapi-java-sdk)
 
-欢迎使用 Alibaba Cloud SDK for Java 。Alibaba Cloud SDK for Java 让您不用复杂编程即可访问云服务器、云监控等多个阿里云服务。
-这里向您介绍如何获取 Alibaba Cloud SDK for Java 并开始调用。
+阿里云 V1.0 SDK 即将进入基础安全维护阶段，不再建议使用，建议使用 V2.0 SDK。
+
 如果您在使用 Alibaba Cloud SDK for Java 的过程中遇到任何问题，欢迎在当前 GitHub [提交 Issues](https://github.com/aliyun/aliyun-openapi-java-sdk/issues/new)。
 
 ## 环境要求

README.md

@@ -10,9 +10,7 @@ English | [简体中文](./README-CN.md)
 [![Java CI with Maven](https://github.com/aliyun/aliyun-openapi-java-sdk/actions/workflows/maven.yml/badge.svg)](https://github.com/aliyun/aliyun-openapi-java-sdk/actions/workflows/maven.yml)
 [![codecov](https://codecov.io/gh/aliyun/aliyun-openapi-java-sdk/graph/badge.svg?token=4LHp6BfqKF)](https://codecov.io/gh/aliyun/aliyun-openapi-java-sdk)
 
-The Alibaba Cloud SDK for Java allows you to access Alibaba Cloud services such as Elastic Compute Service (ECS), Server Load Balancer (SLB), and CloudMonitor. You can access Alibaba Cloud services without the need to handle API related tasks, such as signing and constructing your requests.
-
-This document introduces how to obtain and call Alibaba Cloud SDK for Java.
+The Alibaba Cloud V1.0 SDK will soon enter the Basic Security Maintenance phase and is no longer recommended for use. It is suggested to use the V2.0 SDK instead.
 
 If you have any problem while using Alibaba Cloud SDK for Java, please [submit an issue](https://github.com/aliyun/aliyun-openapi-java-sdk/issues/new).