Add installing via MacPorts instruction
Add installing via MacPorts instruction

pick is now on MacPorts (https://trac.macports.org/browser/trunk/dports/devel/pick/Portfile).
thoughtbot/pick,DBOTW/pick,thoughtbot/pick,temochka/pick,prahlad37/pick,prahlad37/pick,calleerlandsson/pick,prahlad37/pick,thoughtbot/pick,thoughtbot/pick,calleerlandsson/pick,DBOTW/pick,prahlad37/pick,DBOTW/pick,GBuella/pick,GBuella/pick,calleerlandsson/pick,temochka/pick