No argparse interface for controlling the program

[sandeepnmenon]

Raising issue for the TODO
Add a nice [[https://docs.python.org/3/library/argparse.html][ argparse ]] interface instead of requiring the user to change variables in the script. Include example usage in docstring (a la [[https://tldr.sh/][tldr]] or [[http://bropages.org][bro]])

Raising PR with implementation
#7

[sandeepnmenon]

Code in PR #10 .
Closing this issue