fixed c6c5a605 from https://gitee.com/rongShao-Z/docs/pulls/18255

fix the docs for scroller
Signed-off-by: Nzhangrongjie <zhangrongjie4@huawei.com>
Change-Id: I20f00acde184d1830bf8227454e6082a30948def

zh-cn/application-dev/reference/arkui-ts/ts-container-scroll.md

@@ -139,7 +139,7 @@ scrollToIndex(value: number): void
 
 >  **说明：**
 >
->  仅支持Grid、List组件。
+>  仅支持Grid、List、WaterFlow组件。
 
 **参数：**