docs: display all less variables (#7604)

src/address-edit/README.md

@@ -143,3 +143,15 @@ Use [ref](https://vuejs.org/v2/api/#ref) to get AddressEdit instance and call in
 ### Area Data Structure
 
 Please refer to [Area](#/en-US/area) component。
+
+### Less Variables
+
+How to use: [Custom Theme](#/en-US/theme).
+
+| Name | Default Value | Description |
+| --- | --- | --- |
+| @address-edit-padding | `@padding-sm` | - |
+| @address-edit-buttons-padding | `@padding-xl @padding-base` | - |
+| @address-edit-button-margin-bottom | `@padding-sm` | - |
+| @address-edit-detail-finish-color | `@blue` | - |
+| @address-edit-detail-finish-font-size | `@font-size-sm` | - |

src/address-edit/README.zh-CN.md

@@ -149,3 +149,15 @@ export default {
 ### 省市县列表数据格式
 
 请参考 [Area](#/zh-CN/area) 组件。
+
+### 样式变量
+
+组件提供了下列 Less 变量，可用于自定义样式，使用方法请参考[主题定制](#/zh-CN/theme)。
+
+| 名称                                  | 默认值                      | 描述 |
+| ------------------------------------- | --------------------------- | ---- |
+| @address-edit-padding                 | `@padding-sm`               | -    |
+| @address-edit-buttons-padding         | `@padding-xl @padding-base` | -    |
+| @address-edit-button-margin-bottom    | `@padding-sm`               | -    |
+| @address-edit-detail-finish-color     | `@blue`                     | -    |
+| @address-edit-detail-finish-font-size | `@font-size-sm`             | -    |