message: update focus example
diff: @@ -1325,16 +1325,16 @@ React.useEffect(() => {
  withOutCopy
  url="https://codesandbox.io/s/react-hook-form-focus-74ecu"
  rawData={`<Controller
  - control={control}
  - name="test"
  - render={({ onChange, onBlur, value, name, ref }) => (
  - <Checkbox
  - onBlur={onBlur}
  - onChange={e => onChange(e.target.checked)}
  - checked={value}
  - inputRef={ref}
  + render={(props) => (
  + <TextField
  + value={props.value}
  + onChange={props.onChange}
  + inputRef={props.ref} // wire up the input ref
  />
  )}
  + name="TextField"
  + control={control}
  + rules={{ required: true }}
  />`}
  />
  </TabGroup>
  