removed mac stuff from README
removed mac stuff from README

blerner/bottlenose,NatTuck/bottlenose,blerner/bottlenose,NatTuck/bottlenose,blerner/bottlenose,blerner/bottlenose,blerner/bottlenose,blerner/bottlenose,CodeGrade/bottlenose,CodeGrade/bottlenose,NatTuck/bottlenose,CodeGrade/bottlenose,NatTuck/bottlenose,NatTuck/bottlenose,NatTuck/bottlenose,blerner/bottlenose,CodeGrade/bottlenose,CodeGrade/bottlenose,CodeGrade/bottlenose,CodeGrade/bottlenose