Add missing example init script for mavlink daemon.
Add missing example init script for mavlink daemon.

Thanks @jmachuca77 for noticing that this was missing!

trishhyles/dronekit-python,diydrones/dronekit-python,K-Carrington/dronekit-python,K-Carrington/dronekit-python,hamishwillee/dronekit-python,dronekit/dronekit-python,MaxQu/dronekit-python,sieraUAV/sieraUAV,duststorm/dronekit-python,sieraUAV/sieraUAV,dronekit/dronekit-python,duststorm/dronekit-python,trishhyles/dronekit-python,hamishwillee/dronekit-python,djnugent/dronekit-python,diydrones/dronekit-python,djnugent/dronekit-python,djnugent/dronekit-python,MaxQu/dronekit-python