message: improve doc on Controller onFocus
diff: @@ -1373,19 +1373,19 @@ React.useEffect(() => {
  <ul>
  <li>
  <p>
  - <b className={typographyStyles.note}>Note:</b> Input focus
  - order is according to registration order, which means native
  - input registered with <code>ref</code> will be the first to be
  - focused on the error due to <code>Controller</code>{" "}
  - registration occurred during <code>useEffect</code>.
  + Input focus order is according to registration order, which
  + means native input registered with <code>ref</code> will be
  + the first to be focused on the error due to{" "}
  + <code>Controller</code> registration occurred during{" "}
  + <code>useEffect</code>.
  </p>
  </li>
  <li>
  <p>
  - <b className={typographyStyles.note}>Note:</b> If your input
  - disabled based on <code>form.formState.isSubmitting</code>,
  - you must enabled it before invoke focus method.
  + If your input disabled based on{" "}
  + <code>form.formState.isSubmitting</code>, you must enabled it
  + before invoke focus method.
  </p>
  </li>
  </ul>
  @@ -1394,7 +1394,7 @@ React.useEffect(() => {
  url="https://codesandbox.io/s/react-hook-form-controllerautofocus-v6-disabled-k1of4"
  rawData={`<Controller
  onFocus={() => {
  - inputRef.current.disabled = false;
  + inputRef.current.disabled = false; // when input is been disabled.
  inputRef.current?.focus();
  }}
  />`}
  