chore(README): adding Action Sheet to the README
chore(README): adding Action Sheet to the README

references #54

driftyco/ionic-conference-app,aayushkapoor206/whatshot,ziggyJ/ionic-conference-app,sinholic/aero-flyer,TobiasSchaeuble/HMAD,nReality/AgileAfricaConf-app,abdolmajidazad/neveshtak,minhlong/NamHoa-Ionic,kumarnavinrai/finalmcu,subsolo/ITHC,ericel/weytindey,abdolmajidazad/neveshtak,fmsouza/mangiare,minhlong/NamHoa-Ionic,abdolmajidazad/neveshtak,nReality/AgileAfricaConf-app,pierrecabriere/Greencharge,nReality/AgileAfricaConf-app,AlexFine/ionic-conference-app,sinholic/aero-flyer,AlexFine/ionic-conference-app,francarmona/ionice-contryside-events-app,aayushkapoor206/whatshot,nReality/SUGSA-ScrumGathering-App2016,laodice/ionic-conference-app-session2,Beslinda/catalogIonicApp,pierrecabriere/Greencharge,nReality/SUGSA-ScrumGathering-App2016,francarmona/ionice-contryside-events-app,nReality/AgileAfricaConf-app,nReality/AgileAfricaConf-app,kumarnavinrai/finalmcu,TobiasSchaeuble/HMAD,tommy-boy/AMZNDEALS,francarmona/ionice-contryside-events-app,kumarnavinrai/finalmcu,minhlong/NamHoa-Ionic,subsolo/ITHC,ericel/weytindey,TobiasSchaeuble/HMAD,AlexFine/ionic-conference-app,AlexFine/ionic-conference-app,Beslinda/catalogIonicApp,ziggyJ/ionic-conference-app,nReality/SUGSA-ScrumGathering-App2016,nReality/AgileAfricaConf-app,driftyco/ionic-conference-app,aayushkapoor206/whatshot,nReality/AgileAfricaConf-app,nReality/SUGSA-ScrumGathering-App2016,Beslinda/catalogIonicApp,nReality/SUGSA-ScrumGathering-App2016,aayushkapoor206/whatshot,fmsouza/mangiare,tommy-boy/AMZNDEALS,fmsouza/mangiare,laodice/ionic-conference-app-session2,nReality/SUGSA-ScrumGathering-App2016,fmsouza/mangiare,aayushkapoor206/whatshot,ericel/weytindey,subsolo/ITHC,pierrecabriere/Greencharge,nReality/SUGSA-ScrumGathering-App2016,laodice/ionic-conference-app-session2,driftyco/ionic-conference-app,tommy-boy/AMZNDEALS,sinholic/aero-flyer