anchor.diff:      </tbody>
       </table>
   
  -    <script>GOVUK.Mappings.setupTables()</script>
  +    <script>GOVUK.SelectableTable.setup();</script>
     </ul>
   </div>
   <hr>
  
positive.code:           <th class="selectable-row">
              <div class="relative">
                <label>
                  <input type="checkbox" />
                </label>
              </div>
            </th>
  
negative.code:         <td class="selectable-row">
            <div class="relative">
              <label>
                <input type="checkbox" checked="checked" class="js-toggle-row" />
              </label>
            </div>
          </td>
  