CONTRIB: Improve example in docstring and delete extra print
CONTRIB: Improve example in docstring and delete extra print

Changing the type of quotation is an improvement because
Z shell parses the contents of double-quoted strings.

The extra print() statement was a relic from debugging.

necozay/tulip-control,tulip-control/tulip-control,tulip-control/tulip-control,necozay/tulip-control,tulip-control/tulip-control,necozay/tulip-control,tulip-control/tulip-control,necozay/tulip-control,necozay/tulip-control