add os x note
add os x note

nkhuyu/summingbird,nkhuyu/summingbird,zirpins/summingbird,rangadi/summingbird,joychugh/summingbird,surabhiiyer/summingbird,nvoron23/summingbird,twitter/summingbird,atomicjets/summingbird,joychugh/summingbird,twitter/summingbird,surabhiiyer/summingbird,atomicjets/summingbird,zirpins/summingbird,rangadi/summingbird,nvoron23/summingbird