Modify HW2 to ask which class people will use git with

[ppannuto]

There's always a few folks who somehow miss the bit in HW2 and end up in trouble when the git II usage homework rolls around.

The homework should be changed to add a graded question/blank, something like I'll use git to manage work for ________________________________

Should add some text as well with suggestions for folks that don't have coding classes. We've had success before with people using Latex to write up 376 homework (or even in one case a paper for a humanities class)