Add

usage: add [-k ADD_STRIKE] [-i ADD_INDEX] [-s] [-p] [-h]

Add option to the diagram.

optional arguments:
  -i ADD_INDEX, --index ADD_INDEX
                        index of strike to be used in
                        the diagram.
  -k ADD_STRIKE, --strike ADD_STRIKE
                        strike to be used in the diagram.
  -s, --short           short the option instead of buying it
  -p, --put             buy a put instead of a call
  -h, --help            show this help message