Add CoreData section to README
Add CoreData section to README

maximgolunov/EasyMapping,jazzz13/EasyMapping,keslcod/EasyMapping,ChronicStim/EasyMapping,jazzz13/EasyMapping,lucasmedeirosleite/EasyMapping,ChronicStim/EasyMapping,maximgolunov/EasyMapping,lucasmedeirosleite/EasyMapping,PodsMakleso6/EasyMapping,keslcod/EasyMapping,PodsMakleso6/EasyMapping,ChronicStim/EasyMapping