Updated policies for tutorial exercise submission.
Updated policies for tutorial exercise submission.


Former-commit-id: d7420dd77ddccabc2080df1b3ab1a6e4ebe5cc49 [formerly 93a705e20936bad2377e9f7b89d1a0a26638695f]
Former-commit-id: 9d9a4579020038deb921601d213c1f64ffa49194
justinbois/bebi103_utils