fixed 1e47432e from https://gitee.com/HelloCrease/docs/pulls/15266

update zh-cn/application-dev/reference/arkui-ts/Readme-CN.md.
Signed-off-by: NLiAn <lian15@huawei.com>
Signed-off-by: NLiAn <lian15@huawei.com>

zh-cn/application-dev/reference/arkui-ts/Readme-CN.md

@@ -102,6 +102,7 @@
   - [ColumnSplit](ts-container-columnsplit.md)
   - [Counter](ts-container-counter.md)
   - [Flex](ts-container-flex.md)
+  - [FlowItem](ts-container-flowitem.md)
   - [GridCol](ts-container-gridcol.md)
   - [GridRow](ts-container-gridrow.md)
   - [Grid](ts-container-grid.md)
@@ -121,6 +122,7 @@
   - [Swiper](ts-container-swiper.md)
   - [Tabs](ts-container-tabs.md)
   - [TabContent](ts-container-tabcontent.md)
+  - [WaterFlow](ts-container-waterflow.md)
 - 媒体组件
   - [Video](ts-media-components-video.md)
 - 绘制组件