!1452 事件通知子系统支持SysCap机制

Merge pull request !1452 from zero-cyc/0210

zh-cn/application-dev/reference/apis/js-apis-commonEvent.md

@@ -116,7 +116,11 @@
 import CommonEvent from '@ohos.commonevent';
 ```
 
+## 系统能力
 
+```js
+SystemCapability.Notification.CommonEvent
+```
 
 ## CommonEvent.publish
 

zh-cn/application-dev/reference/apis/js-apis-emitter.md

@@ -8,6 +8,12 @@
 import emitter from '@ohos.events.emitter'
 ```
 
+## 系统能力
+
+```javascript
+SystemCapability.Notification.Emitter
+```
+
 ## 权限列表
 
 无

zh-cn/application-dev/reference/apis/js-apis-notification.md

@@ -6,6 +6,12 @@
 import Notification from '@ohos.notification';
 ```
 
+## 系统能力
+
+```js
+SystemCapability.Notification.Notification
+```
+
 ## Notification.publish(request: NotificationRequest, callback: AsyncCallback\<void\>)
 
 - 接口说明