Update getting started link.
Update getting started link.

apinf/api-umbrella,Chuck8080/apiumbrella,NREL/api-umbrella,apinf/api-umbrella,apinf/api-umbrella,NREL/api-umbrella,apinf/api-umbrella,apinf/api-umbrella,NREL/api-umbrella,NREL/api-umbrella,Chuck8080/apiumbrella