message: include information as undefined for onChange
diff: @@ -37,7 +37,11 @@ export default ({ currentLanguage, isController }) => {
  <p>
  A function which sends the input's value to the library. It
  should be assigned to the <code>onChange</code> prop of the
  - input.
  + input and value should{" "}
  + <b>
  + not be <code>undefined</code>
  + </b>
  + .
  </p>
  </td>
  </tr>
  