update zh-cn/application-dev/ui/arkts-ui-development-overview.md.

Signed-off-by: N葛亚芳 <geyafang@huawei.com>

zh-cn/application-dev/ui/arkts-ui-development-overview.md

@@ -94,4 +94,6 @@
 
 - [ArkTS组件集](https://gitee.com/openharmony/applications_app_samples/tree/master/code/UI/ArkTsComponentCollection/ComponentCollection)：组件、通用方法、动画、全局方法的集合。
 
-- [像素转换（ArkTS）（API9）](https://gitee.com/openharmony/codelabs/tree/master/ETSUI/PixelConversion)
\ No newline at end of file
+- [像素转换（ArkTS）（API9）](https://gitee.com/openharmony/codelabs/tree/master/ETSUI/PixelConversion)
+
+- [购物应用（ArkTS）（API8）](https://gitee.com/openharmony/codelabs/tree/master/ETSUI/ShoppingEts)
\ No newline at end of file