⏯️ add a demonstration with argon as a base image

[PiotrJustyna]

This should help with explaining what problems the repository is solving.

[PiotrJustyna]

• argon in docker compose context

Managed to do it today and it's working fine: https://github.com/PiotrJustyna/supreme-couscous

[PiotrJustyna]

Couscous is shaping up to become a very interesting demo project. I think we should keep it in the argon repository as a demonstration alongside something a bit simpler, like a hello world console application.

At the same time I think we should remove "terminal" from the root level of the repository and make it into that second example (hello world console application). That will make for a cleaner, easier to work with version of argon.

I am really pleased with the way the repository is shaping. I'm thinking it should be turned into a universal development environment with flavors that use it as a base image. Argon started as an f# development environment, but I mostly use it for pandoc 😅

[PiotrJustyna]

Done now with this: PiotrJustyna/argon-examples@2a5b378 What would be good to see is an example where argon is running as a non-root user.