message: docs(Picker): fix typo
diff: @@ -187,7 +187,7 @@ export default {
  When Picker columns data is acquired asynchronously, use `loading` prop to show loading prompt.
  ```html
  -<van-picker title="Title" :columns="columns" :loading="loading" />
  +<van-picker title="Title" :columns="state.columns" :loading="state.loading" />
  ```
  ```js
  @@ -214,18 +214,18 @@ export default {
  ```html
  <van-field
  - v-model="value"
  + v-model="state.value"
  readonly
  clickable
  label="City"
  placeholder="Choose City"
  - @click="showPicker = true"
  + @click="state.showPicker = true"
  />
  <van-popup v-model:show="showPicker" round position="bottom">
  <van-picker
  title="Title"
  - :columns="columns"
  - @cancel="showPicker = false"
  + :columns="state.columns"
  + @cancel="state.showPicker = false"
  @confirm="onConfirm"
  />
  </van-popup>
  