s/:nrLessonGroups/:nrLessons/g
s/:nrLessonGroups/:nrLessons/g

Since we really are tracking the number of lessons in a row and not the
number of lesson groups.

Signed-off-by: Pang Yan Han <22594c345857f664c61cd411f607c4d40a9d4af9@gmail.com>

yanhan/cljs-nusmods,yanhan/cljs-nusmods,yanhan/cljs-nusmods