docs(Tab): update document

src/tab/README.md

@@ -176,7 +176,7 @@ In scrollspy mode, the list of content will be tiled
 
 ```html
 <van-tabs v-model="active" scrollspy sticky>
-  <van-tab v-for="index in 10" :title="'tab ' + index">
+  <van-tab v-for="index in 8" :title="'tab ' + index">
     content {{ index }}
   </van-tab>
 </van-tabs>
@@ -190,15 +190,11 @@ In scrollspy mode, the list of content will be tiled
 |------|------|------|------|
 | v-model | Index of active tab | *string \| number* | `0` |
 | type | Can be set to `line` `card` | *string* | `line` |
+| color | Tab color | *string* | `#ee0a24` |
 | duration | Toggle tab's animation time | *number* | `0.3` | - |
 | background | Background color | *string* | `white` |
 | line-width | Width of tab line | *string \| number* | Width of active tab |
 | line-height | Height of tab line | *string \| number* | `3px` |
-| color | Tab color | *string* | `#ee0a24` |
-| title-active-color | Title active color | *string* | - |
-| title-inactive-color | Title inactive color | *string* | - |
-| swipe-threshold | Set swipe tabs threshold | *number* | `4` | - |
-| offset-top | Offset top when use sticky mode | *number* | `0` |
 | animated | Whether to change tabs with animation | *boolean* | `false` |
 | border | Whether to show border when `type="line"` | *boolean* | `true` |
 | ellipsis | Whether to ellipsis too long title | *boolean* | `true` |
@@ -206,20 +202,24 @@ In scrollspy mode, the list of content will be tiled
 | swipeable | Whether to switch tabs with swipe gestrue in the content | *boolean* | `false` |
 | lazy-render | Whether to enable tab content lazy render | *boolean* | `true` |
 | scrollspy `v2.3.0` | Whether to use scrollspy mode | *boolean* | `false` |
+| offset-top | Offset top when use sticky mode | *number* | `0` |
+| swipe-threshold | Set swipe tabs threshold | *number* | `4` | - |
+| title-active-color | Title active color | *string* | - |
+| title-inactive-color | Title inactive color | *string* | - |
 
 ### Tab Props
 
 | Attribute | Description | Type | Default |
 |------|------|------|------|
-| name | Identifier | *string \| number* | Index of tab |
 | title | Title | *string* | - |
-| title-style `v2.2.14` | Custom title style | *any*  | - |
 | disabled | Whether to disable tab | *boolean* | `false` |
 | dot `v2.3.0` | Whether to show red dot on the title | *boolean* | `false` |
 | info `v2.3.0` | Content of the badge on the title | *string \| number* | - |
+| name `v2.0.6` | Identifier | *string \| number* | Index of tab |
 | url `v2.2.1` | Link | *string* | - |
 | to `v2.2.1` | Target route of the link, same as to of vue-router | *string \| object* | - |
 | replace `v2.2.1` | If true, the navigation will not leave a history record | *boolean* | `false` |
+| title-style `v2.2.14` | Custom title style | *any*  | - |
 
 ### Tabs Events