Revert "Increase maximum low marks to 3000"

This reverts commit 8b413de5f5fd3a7b930b790a3fa2a24b6f808c0f.
Merge branch '1.0-orig' of git@github.com:rowanabejjani/lesson-1.0.git into 1.0-orig
Revert "Revert "Increase maximum low marks to 3000""

This reverts commit ed85ac20eaa1e40f39399e8d8f16017a28404e56.