Revert "removed comments from the README that is now in the tutorial and documentation."

This reverts commit 6f548f8e0f897a0334285a238c3052344932c286.
check to see if all of our id's exist as keys in the dictionary, and also make sure our column names are in their correct place as well
remove extra space at beginning of line
Move imports to top of module
use enumerate instead of map