It appears to be causing confusion for users on Discord when copying/pasting from the example here, if Headscale crashes on launch then the container will be removed and logs can't be viewed with `docker logs`.
- Fix URLs referring to files in this repository
- Better explain that we are creating the headscale directory and running the commands on the host Docker node
- Place instructions to download example config file to use as config file, as recommended steps.
This commit starts restructuring the documentation and updating it to be
compliant with 0.12.x+ releases.
The main change is that the documentation has been rewritten for the
ground up, and hopefully simplified.
The documentation has been split into an official documentation for
running headscale as a binary under Linux with SystemD and a "community"
provided documentation for Docker.
This should make the two documents a lot easier to read and follow than
the mishmash document we had.
