message: docs: mention that control is optional in useFormState
diff: @@ -71,7 +71,8 @@ export default ({ currentLanguage }) => {
  <Link to={"/api/useform/control"}>
  <code>control</code>
  </Link>{" "}
  - object from useForm.
  + object provided by <code>useForm</code>. It's optional if you are using
  + FormContext.
  </td>
  </tr>
  <tr>
  