message: examples: correct axis for my setup
  This is just for my tested setup using the Logitech Extreme 3D Pro
  joystick.
diff: @@ -31,7 +31,7 @@ struct JoystickMapping {
  int throttle_axis = 3;
  bool roll_inverted = false;
  - bool pitch_inverted = false;
  + bool pitch_inverted = true;
  bool yaw_inverted = false;
  bool throttle_inverted = true;
  } joystick_mapping{};
  