docs: Update Tree virtual scroll desc (#25375)

components/tree/index.en-US.md

@@ -91,6 +91,12 @@ Before `3.4.0`: The number of treeNodes can be very large, but when `checkable=t
 }
 ```
 
+### Tree Methods
+
+| Name              | Description                          |
+| ----------------- | ------------------------------------ |
+| scrollTo({ key }) | Scroll to key item in virtual scroll |
+
 ## FAQ
 
 ### How to hide file icon when use showLine?

components/tree/index.zh-CN.md

@@ -92,6 +92,12 @@ cover: https://gw.alipayobjects.com/zos/alicdn/Xh-oWqg9k/Tree.svg
 }
 ```
 
+### Tree 方法
+
+| 名称              | 说明                            |
+| ----------------- | ------------------------------- |
+| scrollTo({ key }) | 虚拟滚动下，滚动到指定 key 条目 |
+
 ## FAQ
 
 ### 在 showLine 时，如何隐藏子节点图标？