[Improvement] support Number type info (#845)

docs/markdown/en-US/badge.md

@@ -47,5 +47,5 @@ export default {
 | Attribute | Description | Type | Default | Accepted Values |
 |-----------|-----------|-----------|-------------|-------------|
 | title | Content | `String` | `''` | - |
-| info | Info Message | `String` | `''` | - |
+| info | Info Message | `String | Number` | `''` | - |
 | url | Link | `String` | - | - |

docs/markdown/en-US/goods-action.md

@@ -61,7 +61,7 @@ Use `info` prop to show messages in upper right corner of icon
 | text | Button text | `String` | - | - |
 | icon | Icon | `String` | - | - |
 | icon-class | Icon class name | `String` | `''` | - |
-| info | Info message | `String` | - | - |
+| info | Info message | `String | Number` | - | - |
 | url | Link | `String` | - | - |
 | to | Target route of the link, same as to of `vue-router` | `String | Object` | - | - |
 | replace | If true, the navigation will not leave a history record | `String` | `false` | - |

docs/markdown/en-US/icon.md

@@ -49,7 +49,7 @@ import 'vant/lib/vant-css/icon-local.css';
 | Attribute | Description | Type | Default | Accepted Values |
 |-----------|-----------|-----------|-------------|-------------|
 | name | Icon name | `String` | `''` | - |
-| info | Info message | `String` | `''` | - |
+| info | Info message | `String | Number` | `''` | - |
 
 ### Event
 

docs/markdown/en-US/tabbar.md

@@ -78,7 +78,7 @@ export default {
 |-----------|-----------|-----------|-------------|-------------|
 | icon | Icon name | `String` | - | Names from Icon Component |
 | dot | Whether to show red dot | `Boolean` | - | - |
-| info | Info message | `String` | - | - |
+| info | Info message | `String | Number` | - | - |
 | url | Link | `String` | - | - |
 | to | Target route of the link, same as to of `vue-router` | `String | Object` | - | - |
 | replace | If true, the navigation will not leave a history record | `String` | `false` | - |