fix broken link in README
fix broken link in README

nhynes/neon,dongjoon-hyun/neon,SalemAmeen/neon,sunclx/neon,chetan51/neon,nkhuyu/neon,rupertsmall/neon,dongjoon-hyun/neon,rupertsmall/neon,jfsantos/neon,NervanaSystems/neon,FighterLYL/neon,tambetm/neon,NervanaSystems/neon,tambetm/neon,neuroidss/neon,FighterLYL/neon,Jokeren/neon,sunclx/neon,nhynes/neon,ruguevara/neon,sherjilozair/neon,Bam4d/neon,chetan51/neon,DougFirErickson/neon,neuroidss/neon,DougFirErickson/neon,kod3r/neon,SalemAmeen/neon,jfsantos/neon,NervanaSystems/neon,sherjilozair/neon,nkhuyu/neon,lihuanghai/neon,Bam4d/neon,ruguevara/neon,Jokeren/neon,shyamalschandra/neon,ypkang/neon,zolegus/neon,rupertsmall/neon,zolegus/neon,shyamalschandra/neon,misko/neon,chetan51/neon,misko/neon,kod3r/neon,Jokeren/neon,coufon/neon-distributed,kashif/neon,SalemAmeen/neon,vseledkin/neon,zolegus/neon,jfsantos/neon,sunclx/neon,Bam4d/neon,ypkang/neon,sherjilozair/neon,vseledkin/neon,kracwarlock/neon,misko/neon,FighterLYL/neon,coufon/neon-distributed,coufon/neon-distributed,kracwarlock/neon,songhan/neon,Jokeren/neon,dongjoon-hyun/neon,vseledkin/neon,shyamalschandra/neon,kod3r/neon,nhynes/neon,DougFirErickson/neon,NervanaSystems/neon,lihuanghai/neon