Combobox Date Picker Example: Fix 2 spelling errors (pull #1448)

- controled -> controlled
- enableing -> enabling

Co-authored-by: Matt King <a11yThinker@Gmail.com>

examples/combobox/combobox-datepicker.html

@@ -497,15 +497,15 @@ <h3 id="rps_label_combobox">Combobox</h3>
             <th scope="row"><code>aria-controls="IDREF"</code></th>
             <td><code>input</code></td>
             <td>
-              Identifies the element controled by the combobox.
+              Identifies the element controlled by the combobox.
             </td>
           </tr>
           <tr data-test-id="textbox-aria-describedby">
             <td></td>
             <th scope="row"><code>aria-describedby="IDREF"</code></th>
             <td><code>input</code></td>
             <td>
-              Identifies the element that provides an accessible description for the combobox, enableing assistive technologies to associate the date format description with the input.
+              Identifies the element that provides an accessible description for the combobox, enabling assistive technologies to associate the date format description with the input.
             </td>
           </tr>
         </tbody>