Add credit for airport icon in about page
Add credit for airport icon in about page

Ysurac/Web_App,Ysurac/Web_App,Ysurac/FlightAirMap,hzmarrou/FlightAirMap,Ysurac/Web_App,hzmarrou/FlightAirMap,Ysurac/FlightAirMap,Ysurac/FlightAirMap,Ysurac/FlightAirMap,hzmarrou/FlightAirMap,hzmarrou/FlightAirMap