add link to release

README.md

@@ -15,6 +15,8 @@ This is the open source version of Python SDK for AliCloud Log Service. It's a P
 Log Service, providing encapsulations of Log Service Rest API. It helps Pythoner to connect to Alicloud Log Service more
 efficiently.
 
+Refer to the doc: [http://aliyun-log-python-sdk.readthedocs.io/](http://aliyun-log-python-sdk.readthedocs.io/).
+
 ### Features
 1. Wrap Rest API
 2. Implement the signature of API request
@@ -38,6 +40,11 @@ efficiently.
 ### Supported Log Service API
 1. Log Service API 0.6
 
+### Change Log
+
+[Change Los](https://github.com/aliyun/aliyun-log-python-sdk/releases)
+
+
 ## Installation
 ```shell
 pip install -U aliyun-log-python-sdk

README_CN.md

@@ -16,6 +16,8 @@
 （Log Service）API的Python编程接口，提供了对于Log Service Rest API所有接口的封装
 和支持，帮助Python开发人员更快编程使用阿里云Log Service服务。
 
+参考文档: [http://aliyun-log-python-sdk.readthedocs.io/](http://aliyun-log-python-sdk.readthedocs.io/)
+
 ### 具体功能
 
 1. 封装Rest API。
@@ -42,6 +44,10 @@
 
 1. Log Service API 0.6
 
+### 版本改动
+
+[版本改动](https://github.com/aliyun/aliyun-log-python-sdk/releases)
+
 ## 安装
 ```shell
 pip install -U aliyun-log-python-sdk