README: Add --network none to docker run calls

[Papierkorb]

Hello!

I just found this repository - Thank you, it did exactly what I needed!

I used the Docker method of decoding my text file (decoded from the QR Code), which worked great.

However, one slight nit pick: This tool works with highly sensitive data. While I'm sure you don't have a backdoor, could I suggest you to add --network none to your example docker run calls? This way, the user can be sure that the tool does not send anything to the web.

This would only be a change to the README, as the docker container worked fine already: cat the-file | docker run --pull always --network none -i --rm -v "$(pwd)":/files:ro scit0/extract_otp_secrets:latest-only-txt -

Cheers!

[scito]

Thanks for the suggestion!