Updated Home (markdown)

Home.md

@@ -11,7 +11,7 @@ Welcome to the rdzwx-go wiki!
        hold ⌖ to show/hide prediction parameters
   <li> tap [i] to show/hide last RX info
   <li> tap &#9635; to zoom to [GPS pos + last RX + prediciton] 
-  <li> hold <img src="img/ballon.png"/> for context menu<br>
+  <li> hold <img src="img/ballon.png width=20"/> for context menu<br>
        prediction / zoom / external map / delete
   </ul>
 </td></tr>