update docs

Signed-off-by: NHelloCrease <lian15@huawei.com>

zh-cn/application-dev/reference/apis/Readme-CN.md

@@ -382,7 +382,6 @@
   - [console (控制台)](js-apis-logs.md)
   - [Timer (定时器)](js-apis-timer.md)
   - [syscap (系统能力)](js-apis-syscap.md)
-  - [@system.app (应用上下文)](js-apis-system-app.md)
   - application
     - [AccessibilityExtensionContext (辅助功能扩展上下文)](js-apis-inner-application-accessibilityExtensionContext.md)
 
@@ -505,6 +504,7 @@
   - [@ohos.systemParameter (系统属性)](js-apis-system-parameter.md)
   - [@ohos.systemTime (系统时间、时区)](js-apis-system-time.md)
   - [@ohos.usb (USB管理)](js-apis-usb-deprecated.md)
+  - [@system.app (应用上下文)](js-apis-system-app.md)
   - [@system.battery (电量信息)](js-apis-system-battery.md)
   - [@system.bluetooth (蓝牙)](js-apis-system-bluetooth.md)
   - [@system.brightness (屏幕亮度)](js-apis-system-brightness.md)