Update README

Author: yndu13

README.md

@@ -7,9 +7,7 @@
 
 [中文文档](./README_zh.md)
 
-The Alibaba Cloud Python Software Development Kit (SDK) allows you to access Alibaba Cloud services such as Elastic Compute Service (ECS), Object Storage Service (OSS), and Resource Access Management (RAM).  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 Python SDK.
+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.
 
 ## Troubleshoot
 

README_zh.md

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 [![codecov](https://codecov.io/gh/aliyun/aliyun-openapi-python-sdk/graph/badge.svg?token=qmWxah6dPs)](https://codecov.io/gh/aliyun/aliyun-openapi-python-sdk)
 [![python](https://img.shields.io/pypi/pyversions/aliyun-python-sdk-core.svg)](https://img.shields.io/pypi/pyversions/aliyun-python-sdk-core.svg)
 
-欢迎使用阿里云开发者工具套件（SDK）。阿里云 Python SDK 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阿里云 Python SDK 并开始调用。
-
-如果您在使用 SDK 的过程中遇到任何问题，欢迎在当前 GitHub 提交 Issues。
+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。
 
 ## 使用诊断