add documentation to makefile
add documentation to makefile

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