message: update doc on watch when both defaultValue and defaultValues are supplied
diff: @@ -995,6 +995,13 @@ append({ firstName: '' });
  return what's provided in <code>defaultValues</code>.
  </p>
  </li>
  + <li>
  + <p>
  + when both <code>defaultValue</code> and <code>defaultValues</code>{" "}
  + are supplied, <code>defaultValue</code> will be returned instead
  + for the first execution before render.
  + </p>
  + </li>
  <li>
  <p>
  After the first render, default values will be shallowly merged
  