Add instructions for MacPorts
Add instructions for MacPorts

IronBeard/shairport,bowlofstew/shairport,dotmpe/shairport,narakai/shairport,skaman/shairport,hendrikw82/shairport,dotmpe/shairport,IronBeard/shairport,hendrikw82/shairport,mspasov/shairport,dotmpe/shairport,albertz/shairport,bowlofstew/shairport,skaman/shairport,mspasov/shairport,hendrikw82/shairport,narakai/shairport,narakai/shairport,IronBeard/shairport,bowlofstew/shairport,albertz/shairport