Update documentation

README.md

 
 [aar package download link](https://github.com/elinkthings/PabulumSDKRepositoryAndroid/releases)
 
+[key registration](http://sdk.aicare.net.cn)
+
 [中文文档](README_CN.md)
 
 This document is to guide Android developers to integrate Pabulum-SDK-Android in Android 4.4 and above systems, mainly for some key use examples
 ```
 
 
-> Initialization, [key registration](http://sdk.aicare.net.cn/register)
+> Initialization, [key registration](http://sdk.aicare.net.cn)
 ```
 // It is recommended to initialize in Application
 PabulumSDK.getInstance (). Init (this, "key", "secret");

README_CN.md

 
 [aar包下载地址](https://github.com/elinkthings/PabulumSDKRepositoryAndroid/releases)
 
+[key注册](http://sdk.aicare.net.cn)
+
 [English documentation](README.md)
 
 该文档为指导Android开发人员在Android 4.4及以上系统中集成好营养-SDK-Android，主要为一些关键的使用示例
 ```
 
 
-> 初始化,[key注册](http://sdk.aicare.net.cn/register)
+> 初始化,[key注册](http://sdk.aicare.net.cn)
 ```
 //建议在Application中初始化
 PabulumSDK.getInstance().init(this,"key","secret");