Update README.md

[jovanbulck]

Update README with installation instructions on Ubuntu 22.04.

Worked great for me, thanks for making this available!

[roelderickx]

Hi Jo,

Thanks for your pull request.

I did some modifications:

• The confirmed configurations can be grouped in discussion #20, I added a link in the README file.
• I never received questions about snap- or flatpak based distributions, so I think it is clear for everyone they need to install a non-snap version. However, this is useful information which I moved to the requirements section.
• The installation instructions for the requirements are moved to that section as well
• I reworded the section on the installation of the native messaging manifest. That was a bit awkward to start with, my mistake :-)

[mcmate]

had to reinstall the latest version of the eid-archive package, but for the rest it works now, thank you for the support