pip installed package not up to date to docs pages. #692

Docs list that the SRP-S300 is available:

https://python-escpos.readthedocs.io/en/latest/printer_profiles/available-profiles.html#srp-s300

but the python package capabilities.json doesn't have it listed.

Installing the repo from the git repo https://github.com/python-escpos/python-escpos works - and shows this - so probably just missing a release?