updated heading in README
updated heading in README

sideci-sample/sideci-sample-formtastic,paulodiovani/formtastic,nishaya/formtastic,justinfrench/formtastic,nishaya/formtastic,Guestfolio/formtastic,ConferenceCloud/formtastic,justinfrench/formtastic,EndingChaung/formtastic,pcreux/formtastic,paulodiovani/formtastic,justinfrench/formtastic,EndingChaung/formtastic,ryanfox1985/formtastic,ConferenceCloud/formtastic,mikz/formtastic,Davidzhu001/formtastic,crashlytics/formtastic,thenthen8515/formtastic,Guestfolio/formtastic,Davidzhu001/formtastic,ryanfox1985/formtastic,mikz/formtastic,ryanfox1985/formtastic,Baltazore/formtastic,thenthen8515/formtastic