Add note to readme about setting the default resolver.
Add note to readme about setting the default resolver.

guiquanz/stronglink,feld/stronglink,guiquanz/stronglink,Lacra17/stronglink,feld/stronglink,shaunstanislaus/stronglink,nkatsaros/stronglink,iOSCowboy/stronglink,nkatsaros/stronglink,feld/stronglink,rmoorman/stronglink,rmoorman/stronglink,Ryezhang/stronglink,yamingd/stronglink,guiquanz/stronglink,Lacra17/stronglink,iOSCowboy/stronglink,btrask/stronglink,iOSCowboy/stronglink,shaunstanislaus/stronglink,nkatsaros/stronglink,shaunstanislaus/stronglink,Lacra17/stronglink,btrask/stronglink,Ryezhang/stronglink,yamingd/stronglink,yamingd/stronglink,btrask/stronglink,rmoorman/stronglink,btrask/stronglink,Ryezhang/stronglink