update: README.md

README.md

@@ -19,6 +19,34 @@ Node.js >= 6.0.0 required.
 * See [examples](https://github.com/Quinton/node-apollo/tree/master/example)
 * TODO: 支持部分热更新
 
+## remoteConfigService
+```
+  const config = {
+      configServerUrl: 'http://example.com',
+      appId: '<appId>',
+      clusterName: 'default',
+      namespaceName: '',
+      apolloEnv: 'dev',
+      token: '<apollo access token>'
+      // clientIp: '',
+    };
+    const result = await apollo.remoteConfigService(config);
+```
+  >**NOTE:** 读取携程Apollo配置，调用第三方应用接入Apollo开放平台， 详情请参考[Apollo开放平台](https://github.com/ctripcorp/apollo/wiki/Apollo%E5%BC%80%E6%94%BE%E5%B9%B3%E5%8F%B0).
+## createEnvFile
+```
+  const obj = {
+      mongoose: 'mongo://127.0.0.1:27017',
+      appId: '<appId>',
+    };
+  apollo.createEnvFile(eggConfig);
+```
+>**NOTE:** 生成环境变量文件，常用于docker化项目，详细请参考[example](https://github.com/Quinton/node-apollo/tree/master/example).
+## setEnv
+```
+apollo.setEnv();
+```
+>**NOTE:** 注入环境变量到process.env, 详情亲参考[dotenv](https://github.com/motdotla/dotenv#usage).
 ## License
 
 [MIT](LICENSE)
\ No newline at end of file