added some Rails stuff to .rubocop.yml
added some Rails stuff to .rubocop.yml

YaleOutdoors/reservations,Amalanag/reservations,YaleSTC/reservations,YaleSTC/reservations,YaleOutdoors/reservations,Amalanag/reservations,YaleOutdoors/reservations,Amalanag/reservations,YaleSTC/reservations