Update _sidebar.md

docs/uniCloud/_sidebar.md

@@ -56,7 +56,8 @@
   * [费用说明](frv/price.md)
   * [开通服务](frv/service.md)
   * [开发文档](frv/dev.md)
-* [发送短信](send-sms.md)
+* [短信sms扩展库](send-sms.md)
+* [uni-ai扩展库](uni-ai.md)
 * Redis扩展库
   * [简介](redis-introduction.md)
   * [费用说明](redis-buy.md)
@@ -83,16 +84,16 @@
   * uni-pay 统一支付```{"collapsable": true}```
 	* * [uni-pay 云端一体页面模板](uni-pay.md)
 	* * [uni-pay 公共模块](unipay.md)
-  * [uni-im](uni-im.md)
+  * [uni-cms 内容管理](uni-cms.md)
+  * [uni-im 即时通信](uni-im.md)
   * [uSearch 云端一体搜索](https://ext.dcloud.net.cn/plugin?id=3851)
   * [uni-captcha 图形验证码](uni-captcha.md)
   * [uni-sec-check 内容安全](https://ext.dcloud.net.cn/plugin?id=5460)
   * [统一发行页面](uni-portal.md)
   * [uni-cloud-router](uni-cloud-router.md)
-  * [uni-open-bridge](uni-open-bridge.md)
-  * [uni-cloud-s2s](uni-cloud-s2s.md)
-  * [uni-subscribemsg 公共模块](uni-subscribemsg.md)
-* [uni-ai](uni-ai.md)
+  * [uni-open-bridge 微信支付宝等三方凭据管理](uni-open-bridge.md)
+  * [uni-cloud-s2s 传统服务器与uniCloud安全通信](uni-cloud-s2s.md)
+  * [uni-subscribemsg 订阅消息发送](uni-subscribemsg.md)
 * [案例](resource.md)
 * [开发者使用反馈](feedback.md)
 * [DCloud行业认证服务商](https://ask.dcloud.net.cn/article/39388)