💬 fix tree component typos

components/tree-select/demo/treeData.md

@@ -13,7 +13,6 @@ title:
 
 The tree structure can be populated using `treeData` property. This is a quick and easy way to provide the tree content.
 
-
 ````jsx
 import { TreeSelect } from 'antd';
 

components/tree/index.en-US.md

@@ -6,7 +6,7 @@ title: Tree
 
 ## When To Use
 
-Almost anything can be represented in a tree structure. Examples include directories, organization hierarchies, biological classifications, countries, etc. The `Tree` component is a way of representing the hierarchical relationship between these things. You can also  expand, collapse, and select a treeNode within a `Tree`.
+Almost anything can be represented in a tree structure. Examples include directories, organization hierarchies, biological classifications, countries, etc. The `Tree` component is a way of representing the hierarchical relationship between these things. You can also expand, collapse, and select a treeNode within a `Tree`.
 
 ## API