Markdown error (#10100)

There are six preset values, not five

components/grid/demo/responsive.md

@@ -7,11 +7,11 @@ title:
 
 ## zh-CN
 
-参照 Bootstrap 的 [响应式设计](http://getbootstrap.com/css/#grid-media-queries)，预设五个响应尺寸：`xs` `sm` `md` `lg` `xl`  `xxl`。
+参照 Bootstrap 的 [响应式设计](http://getbootstrap.com/css/#grid-media-queries)，预设六个响应尺寸：`xs` `sm` `md` `lg` `xl`  `xxl`。
 
 ## en-US
 
-Referring to the Bootstrap [responsive design] (http://getbootstrap.com/css/#grid-media-queries), here preset five dimensions: `xs` `sm` `md` `lg` `xl`.
+Referring to the Bootstrap [responsive design] (http://getbootstrap.com/css/#grid-media-queries), here preset six dimensions: `xs` `sm` `md` `lg` `xl`.
 
 ````jsx
 import { Row, Col } from 'antd';