[new feature] Button: add url、to、replace prop (#2754)

packages/button/en-US.md

@@ -71,6 +71,9 @@ Vue.use(Button);
 | disabled | Whether to disable button | `Boolean` | `false` |
 | loading | Whether show loading status | `Boolean` | `false` |
 | loading-text | Loading text | `String` | - |
+| url | Link URL | `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` |
 
 ### Event