update README
update README

zsk425/LMMediaPlayer,dlpigpen/LMMediaPlayer,fly2012/LMMediaPlayer,ichu501/LMMediaPlayer,Roeun/LMMediaPlayer,0x0c/LMMediaPlayer,Michael-Z/LMMediaPlayer,strakaviliam/LMMediaPlayer,Niko-r/LMMediaPlayer,flypigrmvb/LMMediaPlayer,sdgandhi/LMMediaPlayer,freeme/LMMediaPlayer,mobileteamvietnam/LMMediaPlayer,Shumais/LMMediaPlayer