Revision of Anchor Props document description,"affix" default value is true; 修正Anchor Props说明,"affix" 是true

components/anchor/index.en-US.md

@@ -17,7 +17,7 @@ For displaying anchor hyperlinks on page and jumping between them.
 
 | Property | Description | Type | Default |
 | -------- | ----------- | ---- | ------- |
-| affix | Fixed mode of Anchor | boolean | false |
+| affix | Fixed mode of Anchor | boolean | true |
 | bounds | Bounding distance of anchor area | number | 5(px) |
 | offsetBottom | Pixels to offset from bottom when calculating position of scroll | number | - |
 | offsetTop | Pixels to offset from top when calculating position of scroll | number | 0 |

components/anchor/index.zh-CN.md

@@ -18,7 +18,7 @@ title: Anchor
 
 | 成员 | 说明 | 类型 | 默认值 |
 | --- | --- | --- | --- |
-| affix | 固定模式 | boolean | false |
+| affix | 固定模式 | boolean | true |
 | bounds | 锚点区域边界 | number | 5(px) |
 | offsetBottom | 距离窗口底部达到指定偏移量后触发 | number |  |
 | offsetTop | 距离窗口顶部达到指定偏移量后触发 | number |  |