docs(select): docs update (vueComponent#6118)

Author: snow-monster

components/select/index.en-US.md

@@ -59,8 +59,8 @@ Select component to select value from options.
 | placeholder | Placeholder of select | string\|slot | - |  |
 | removeIcon | The custom remove icon | VNode \| slot | - |  |
 | searchValue | The current input "search" text | string | - |  |
-| showArrow | Whether to show the drop-down arrow | boolean | true |  |
-| showSearch | Whether show search input in single mode. | boolean | false |  |
+| showArrow | Whether to show the drop-down arrow | boolean | single:true, multiple:false |  |
+| showSearch | Whether select is searchable | boolean | single:false, multiple:true |  |
 | size | Size of Select input. `default` `large` `small` | string | default |  |
 | suffixIcon | The custom suffix icon | VNode \| slot | - |  |
 | tagRender | Customize tag render, only applies when `mode` is set to `multiple` or `tags` | slot \| (props) => any | - |  |

components/select/index.zh-CN.md

@@ -59,8 +59,8 @@ cover: https://gw.alipayobjects.com/zos/alicdn/_0XzgOis7/Select.svg
 | placeholder | 选择框默认文字 | string\|slot | - |  |
 | removeIcon | 自定义的多选框清除图标 | VNode \| slot | - |  |
 | searchValue | 控制搜索文本 | string | - |  |
-| showArrow | 是否显示下拉小箭头 | boolean | true |  |
-| showSearch | 使单选模式可搜索 | boolean | false |  |
+| showArrow | 是否显示下拉小箭头 | boolean | 单选为true,多选为false |  |
+| showSearch | 配置是否可搜索 | boolean | 单选为false,多选为true |  |
 | size | 选择框大小，可选 `large` `small` | string | default |  |
 | suffixIcon | 自定义的选择框后缀图标 | VNode \| slot | - |  |
 | tagRender | 自定义 tag 内容 render，仅在 `mode` 为 `multiple` 或 `tags` 时生效 | slot \| (props) => any | - | 3.0 |