Committing a blank txt file for my week5 homework notes. Committing
a new week5 branch at the same time.
Committing the week5 downloads for the parts of the week I have finished.
Committing the final set of week5 downloads.
Committing my solutions for HW5.2 and HW5.3.
Committing my final homework notes file for the week as well as my
solutions to HW5.3 and HW5.4.