Updated Home (markdown)

Home.md

@@ -22,12 +22,22 @@ Welcome to the rdzwx-go wiki!
   <li> App put in background with TTGO connection:<br>
        will remain active (GPS, TTGO connection)
   <li>  App put in background without TTGO connection: <br>stop all activities
-  <li> Direction display (circle): north is up, red arrow points to sonde, black is phone orientation (compass),
-       circle is walking direction from GPS (yellow if current)
   </ul>
 </td></tr>
 <tr>
 <td><img src="img/screen2.png" width="320"/></td>
 <td><img src="img/screen3.png" width="320"/></td>
-</tr></table>
+</tr>
+<tr>
+<td>
+<td>
+Direction display:
+<ul>
+<li> North is always on top
+<li> Red arrow points to sonde
+<li> black rectangle is phone orientation (compass)
+<li> small circle is walking direction from GPS<br>
+   yellow: current, gray: no direction info from GPS
+</ul>
+</table>
 </div>