add Drone Engage link

Hwurzburg · Hwurzburg · commit 82cfd8b03a76 · 2025-05-19T12:34:05.000-05:00
diff --git a/ardupilot/source/index.rst b/ardupilot/source/index.rst
@@ -238,6 +238,7 @@ Features
    Mission Planner <https://ardupilot.org/planner/index.html>
    APM Planner 2 <https://ardupilot.org/planner2/index.html>
    MAVProxy <https://ardupilot.org/mavproxy/index.html>
+   Drone Engage <https://cloud.ardupilot.org>
 
 .. toctree::
    :hidden:
