def index
      circles = current_user.circles.decorate

      respond_to do |format|
        format.html { render :index, locals: { circles: circles } }
      end
    end
def index
      circles = current_user.circles.decorate

      respond_to do |format|
        format.html { render :index, locals: { circles: circles } }
      end
    end
GET /circles