docs(Area): fix missing version tip of columns-placeholder (youzan#4912)

chenjiahan · web-flow · commit 7948b5906338 · 2019-11-04T16:02:00.000+08:00
diff --git a/src/address-edit/README.md b/src/address-edit/README.md
@@ -65,7 +65,7 @@ export default {
 | Attribute | Description | Type | Default | Version |
 |------|------|------|------|------|
 | area-list | Area List | *object* | - | - |
-| area-columns-placeholder | placeholder of area columns | *string[]* | `[]` | - |
+| area-columns-placeholder | placeholder of area columns | *string[]* | `[]` | 2.2.5 |
 | address-info | Address Info | *AddressInfo* | `{}` | - |
 | search-result | Address search result | *SearchResult[]* | `[]` | - |
 | show-postal | Whether to show postal field | *boolean* | `false` | - |
diff --git a/src/address-edit/README.zh-CN.md b/src/address-edit/README.zh-CN.md
@@ -65,7 +65,7 @@ export default {
 | 参数 | 说明 | 类型 | 默认值 | 版本 |
 |------|------|------|------|------|
 | area-list | 地区列表 | *object* | - | - |
-| area-columns-placeholder | 地区选择列占位提示文字 | *string[]* | `[]` | - |
+| area-columns-placeholder | 地区选择列占位提示文字 | *string[]* | `[]` | 2.2.5 |
 | address-info | 收货人信息初始值 | *AddressInfo* | `{}` | - |
 | search-result | 详细地址搜索结果 | *SearchResult[]* | `[]` | - |
 | show-postal | 是否显示邮政编码 | *boolean* | `false` | - |
diff --git a/src/area/README.md b/src/area/README.md
@@ -62,7 +62,7 @@ Set `columns-num` with 2, you'll have a 2 level picker.
 | title | Toolbar title | *string* | - | - |
 | area-list | Area data | *object* | - | - |
 | columns-num | level of picker | *string \| number* | `3` | - |
-| columns-placeholder | placeholder of columns | *string[]* | `[]` | - |
+| columns-placeholder | placeholder of columns | *string[]* | `[]` | 2.2.5 |
 | item-height | Option height | *number* | `44` | - |
 | loading | Whether to show loading prompt | *boolean* | `false` | - |
 | visible-item-count | Count of visible columns | *number* | `5` | - |
diff --git a/src/area/README.zh-CN.md b/src/area/README.zh-CN.md
@@ -61,7 +61,7 @@ Vue.use(Area);
 | title | 顶部栏标题 | *string* | - | - |
 | area-list | 省市区数据，格式见下方 | *object* | - | - |
 | columns-num | 显示列数，3-省市区，2-省市，1-省 | *string \| number* | `3` | - |
-| columns-placeholder | 列占位提示文字 | *string[]* | `[]` | - |
+| columns-placeholder | 列占位提示文字 | *string[]* | `[]` | 2.2.5 |
 | loading | 是否显示加载状态 | *boolean* | `false` | - |
 | item-height | 选项高度 | *number* | `44` | - |
 | visible-item-count | 可见的选项个数 | *number* | `5` | - |
