Update README to reflect Mac support
Update README to reflect Mac support

rankun203/Cartography,kliu/Cartography,seyton/Cartography,PiersonBro/Cartography,tonyli508/Cartography,bzmario/Cartography,ernestopino/Cartography,iosyoujian/Cartography,bestwpw/Cartography,petester42/Cartography,kliu/Cartography,zilaiyedaren/Cartography,bzmario/Cartography,alvivi/Cartography,ArthurKK/Cartography,ken0nek/Cartography,fullstackclub/Cartography,brunov0id/Cartography,vinod1988/Cartography,gaurav1981/Cartography,cogddo/Cartography,dougbeal/Cartography,jessesquires/Cartography,LiuDeng/Cartography,ernestopino/Cartography,ArthurKK/Cartography,ppamorim/Cartography,sai43/Cartography,msdgwzhy6/Cartography,Khan/Cartography,vinod1988/Cartography,linchanlau/Cartography,TimothyChilvers/Cartography,eeschimosu/Cartography,rankun203/Cartography,alvivi/Cartography,xBrux/Cartography,tonyli508/Cartography,linchanlau/Cartography,bestwpw/Cartography,eeschimosu/Cartography,dougbeal/Cartography,cogddo/Cartography,fullstackclub/Cartography,tonyli508/Cartography-IOS7,iosyoujian/Cartography,gaurav1981/Cartography,brunov0id/Cartography,jessesquires/Cartography,u10int/Cartography,lixiaohu1990/Cartography,cnbin/Cartography,TimothyChilvers/Cartography,petester42/Cartography,u10int/Cartography,sai43/Cartography,zilaiyedaren/Cartography,lixiaohu1990/Cartography,xBrux/Cartography,noluyo/Cartography,msdgwzhy6/Cartography,noluyo/Cartography,PiersonBro/Cartography,jianwoo/Cartography,seyton/Cartography,LiuDeng/Cartography,ken0nek/Cartography,tonyli508/Cartography-IOS7,ppamorim/Cartography,cnbin/Cartography,Khan/Cartography,KyoheiG3/Cartography,KyoheiG3/Cartography