docs: clearify Anchor showInkInFixed API

close #26702

components/anchor/index.en-US.md

@@ -22,7 +22,7 @@ For displaying anchor hyperlinks on page and jumping between them.
 | bounds | Bounding distance of anchor area | number | 5 |  |
 | getContainer | Scrolling container | () => HTMLElement | () => window |  |
 | offsetTop | Pixels to offset from top when calculating position of scroll | number | 0 |  |
-| showInkInFixed | Whether show ink-balls in Fixed mode | boolean | false |  |
+| showInkInFixed | Whether show ink-balls when `affix={false}` | boolean | false |  |
 | onClick | Set the handler to handle `click` event | function(e: Event, link: Object) | - |  |
 | getCurrentAnchor | Customize the anchor highlight | () => string | - |  |
 | targetOffset | Anchor scroll offset, default as `offsetTop`, [example](#components-anchor-demo-targetOffset) | number | - |  |

components/anchor/index.zh-CN.md

@@ -23,7 +23,7 @@ cover: https://gw.alipayobjects.com/zos/alicdn/_1-C1JwsC/Anchor.svg
 | bounds | 锚点区域边界 | number | 5 |  |
 | getContainer | 指定滚动的容器 | () => HTMLElement | () => window |  |
 | offsetTop | 距离窗口顶部达到指定偏移量后触发 | number |  |  |
-| showInkInFixed | 固定模式是否显示小圆点 | boolean | false |  |
+| showInkInFixed | `affix={false}` 时是否显示小圆点 | boolean | false |  |
 | onClick | `click` 事件的 handler | function(e: Event, link: Object) | - |  |
 | getCurrentAnchor | 自定义高亮的锚点 | () => string | - |  |
 | targetOffset | 锚点滚动偏移量，默认与 offsetTop 相同，[例子](#components-anchor-demo-targetOffset) | number | - |  |