docs: 📖 update notFoundContent (#23901)

components/auto-complete/index.en-US.md

@@ -34,6 +34,7 @@ When there is a need for autocomplete functionality.
 | defaultOpen | Initial open state of dropdown | boolean | - |  |
 | open | Controlled open state of dropdown | boolean | - |  |
 | onDropdownVisibleChange | Call when dropdown open | function(open) | - |  |
+| notFoundContent | Specify content to show when no result matches.. | string | 'Not Found' |  |
 
 ## Methods
 

components/auto-complete/index.zh-CN.md

@@ -36,6 +36,7 @@ title: AutoComplete
 | defaultOpen | 是否默认展开下拉菜单 | boolean | - |  |
 | open | 是否展开下拉菜单 | boolean | - |  |
 | onDropdownVisibleChange | 展开下拉菜单的回调 | function(open) | - |  |
+| notFoundContent | 当下拉列表为空时显示的内容 | ReactNode | - |  |
 
 ## 方法
 

components/select/index.en-US.md

@@ -42,7 +42,7 @@ Select component to select value from options.
 | maxTagPlaceholder | Placeholder for not showing tags | ReactNode/function(omittedValues) | - |  |
 | tagRender | Customize tag render | (props) => ReactNode | - |  |
 | mode | Set mode of Select | `multiple` \| `tags` | - |  |
-| notFoundContent | Specify content to show when no result matches.. | string | 'Not Found' |  |
+| notFoundContent | Specify content to show when no result matches.. | ReactNode | 'Not Found' |  |
 | optionFilterProp | Which prop value of option will be used for filter if filterOption is true | string | value |  |
 | optionLabelProp | Which prop value of option will render as content of select. [Example](https://codesandbox.io/s/antd-reproduction-template-tk678) | string | `value` for `combobox`, `children` for other modes |  |
 | placeholder | Placeholder of select | string\|ReactNode | - |  |

components/select/index.zh-CN.md

@@ -43,7 +43,7 @@ title: Select
 | maxTagPlaceholder | 隐藏 tag 时显示的内容 | ReactNode/function(omittedValues) | - |  |
 | tagRender | 自定义 tag 内容 render | (props) => ReactNode | - |  |
 | mode | 设置 Select 的模式为多选或标签 | `multiple` \| `tags` | - |  |
-| notFoundContent | 当下拉列表为空时显示的内容 | string | 'Not Found' |  |
+| notFoundContent | 当下拉列表为空时显示的内容 | ReactNode | 'Not Found' |  |
 | optionFilterProp | 搜索时过滤对应的 option 属性，如设置为 children 表示对内嵌内容进行搜索。[示例](https://codesandbox.io/s/antd-reproduction-template-tk678) | string | value |  |
 | optionLabelProp | 回填到选择框的 Option 的属性值，默认是 Option 的子元素。比如在子元素需要高亮效果时，此值可以设为 `value`。 | string | `children` （combobox 模式下为 `value`） |  |
 | placeholder | 选择框默认文字 | string | - |  |