added module __init__s
tree3cbe9cff5772c12b8c5c4dae23e5167fe5d00db5
-rw-r--r-- 0 __init__.py
drwxr-xr-x - week2
drwxr-xr-x - week3
drwxr-xr-x - week4
drwxr-xr-x - week5
drwxr-xr-x - week5_soln
drwxr-xr-x - week6
drwxr-xr-x - week7