Installation instructions for Armbian

[0815fox]

Hi,
during installation (on Armbian Buster) I had to install the following additional dependencies, which should be noted in Readme.me:

• python3-setuptools
• • zlib1g-dev (not sure though, if -dev is really necessary or just zlib)

Let me know if I shall file a pull request.

[benfrancis]

Thanks for reporting this, it may be useful for others.

We don't currently provide installation instructions for Armbian and I'm not sure we should necessarily try to cram in instructions for every possible Linux distro in the README file as it could become unwieldy.

I'm going to move this issue to the Docs repo and suggest that we maybe start dedicated pages in the documentation for particular distros and link to them from the README.