docs: update ackermann sih (#25418)

* docs: update ackermann sih

* Update metadata to fix broken link

---------

Co-authored-by: Hamish Willee <hamishwillee@gmail.com>

docs/en/airframes/airframe_reference.md

@@ -595,6 +595,10 @@ div.frame_variant td, div.frame_variant th {
    <tr><th>Name</th><th></th></tr>
  </thead>
 <tbody>
+<tr id="rover_rover_sih_rover_ackermann">
+ <td>SIH Rover Ackermann</td>
+ <td>Maintainer: John Doe &lt;john@example.com&gt;<p><code>SYS_AUTOSTART</code> = 1104</p></td>
+</tr>
 <tr id="rover_rover_generic_rover_differential">
  <td>Generic Rover Differential</td>
  <td>Maintainer: John Doe &lt;john@example.com&gt;<p><code>SYS_AUTOSTART</code> = 50000</p></td>