[Improvement] Field: support autosize maxHeight & minHeight (#718)

docs/markdown/en-US/field.md

@@ -99,7 +99,7 @@ Filed support all native properties of input tag，such as `maxlength`、`placeh
 | disabled | Disable field | `Boolean` | `false` | - |
 | error | Whether to show error info | `Boolean` | `false` | - |
 | error-message | Error message | `String` | `''` | - |
-| autosize | Textarea auto resize | `Boolean` | `false` | - |
+| autosize | Textarea auto resize，can accpet an object, e.g. { maxHeight: 100, minHeight: 50 } | `Boolean | Object` | `false` | - |
 | icon | Right side Icon name | `String` | - | - |
 
 ### Event

docs/markdown/zh-CN/field.md

@@ -101,7 +101,7 @@ Filed 默认支持 Input 标签所有的原生属性，比如 `maxlength`、`pla
 | disabled | 是否禁用输入框 | `Boolean` | `false` | - |
 | error | 输入框是否有错误 | `Boolean` | `false` | - |
 | error-message | 输入框底部错误提示文案 | `String` | `''` | - |
-| autosize | 高度自适应(仅支持textarea) | `Boolean` | `false` | - |
+| autosize | 自适应内容高度，只对 textarea 有效，可传入对象，如 { maxHeight: 100, minHeight: 50 }，单位为 px | `Boolean | Object` | `false` | - |
 | icon | 输入框尾部图标 | `String` | - |  Icon 组件支持的类型 |
 
 ### Event