mention supported OSs in the README
mention supported OSs in the README

scalp42/peru,enzochiau/peru,oconnor663/peru,ierceg/peru,olson-sean-k/peru,nivertech/peru,enzochiau/peru,ierceg/peru,buildinspace/peru,nivertech/peru,scalp42/peru,oconnor663/peru,buildinspace/peru,olson-sean-k/peru