message: docs(Switch): fix typo
diff: @@ -55,7 +55,7 @@ export default {
  ### Async Control
  ```html
  -<van-switch :model-value="checked" @update:model:value="onUpdateValue" />
  +<van-switch :model-value="checked" @update:model-value="onUpdateValue" />
  ```
  ```js
  