update readme

Author: neo

README.md

@@ -18,6 +18,7 @@ yarn add mixin-node-sdk
 ```
 
 ## Usage
+1. Use Mixin Api
 ```js
 const {Client} = require('mixin-node-sdk')
 const client = new Client({
@@ -37,8 +38,28 @@ async function getMe() {
   console.log(me)
 }
 ```
+2. Use Mixin's message
+```js
+const {BlazeClient} = require('mixin-node-sdk')
+const client = new BlazeClient({
+   "client_id": "",
+   "session_id": "",
+   "pin_token": "",
+   "private_key": "",
+   "pin": "",
+   "client_secret": ""
+}, {parse: true, syncAck: true})
+
+client.loopBlaze({
+   onMessage(msg){
+     console.log(msg)
+   },
+})
 
 
+```
+> BlazeClient directly inherits Client, so all Client methods BlazeClient can be called directly.
+
 
 ## Note
 1. If you are using the version of `[email protected]`, please see [https://github.com/liuzemei/mixin-node-sdk](https://github.com/liuzemei/mixin-node-sdk)

README.zh-CN.md

@@ -16,6 +16,7 @@ yarn add mixin-node-sdk
 ```
 
 ## 使用
+1. 仅使用 Mixin 的 Api
 ```js
 const { Client } = require('mixin-node-sdk')
 const client = new Client({
@@ -36,6 +37,28 @@ async function getMe() {
 }
 ```
 
+2. 使用 Mixin 的消息功能()
+```js
+const { BlazeClient } = require('mixin-node-sdk')
+const client = new BlazeClient({
+  "client_id": "",
+  "session_id": "",
+  "pin_token": "",
+  "private_key": "",
+  "pin": "",
+  "client_secret": ""
+}, {parse: true, syncAck: true})
+
+client.loopBlaze({
+  onMessage(msg){
+    console.log(msg)
+  },
+})
+
+
+```
+> BlazeClient 直接继承了 Client，所以所有 Client 的方法 BlazeClient 都可以直接调用。
+
 
 
 ## 注意