update API doc
update API doc

johnathanhowell/Sia,rivine/rivine,ChrisSchinnerl/Sia,MrStrong/Sia,mharkus/Sia,kustomzone/Sia,rivine/rivine,ericflo/Sia,mnsl/Sia,Mingling94/Sia,mnsl/Sia,NebulousLabs/Sia,cyrozap/Sia,mharkus/Sia,ChrisSchinnerl/Sia,NebulousLabs/Sia,mtlynch/Sia,mtlynch/Sia,ericflo/Sia,MrStrong/Sia