message: docs(Checkbox): fix v-model name
diff: @@ -147,7 +147,7 @@ export default {
  ### Maximum amount of checked options
  ```html
  -<van-checkbox-group v-model="result" :max="2">
  +<van-checkbox-group v-model="checked" :max="2">
  <van-checkbox name="a">Checkbox a</van-checkbox>
  <van-checkbox name="b">Checkbox b</van-checkbox>
  <van-checkbox name="c">Checkbox c</van-checkbox>
  