Added section clarifying label lookup order.
Added section clarifying label lookup order.

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