changed prints to not print out a tuple
Revert "removed test_questionfunctions_2_1 because it was not covered in the chapter"

This reverts commit 2aeec302e09ae1917a14f5ead17b0b9f87dfec79.
added explanation that return ends function execution
refactored assignments into separate files for each week
bug fix
small fixes to PS5
remove Functions/temp.rst
First draft of functions2 chapter
fixed up grammar
understood structure that sentence was refering to
merged my crummy upstream changes