* Add support for service reload and sync service file
* Copy the systemd.service file to the manual linux docs and adjust the
path to the headscale binary to match with the previous documentation
blocks. Unfortunately, there seems to be no easy way to include a
file in mkdocs.
* Remove a redundant "deprecation" block. The beginning of the
documentation already states that.
* Add `ExecReload` to the systemd.service file.
Fixes: #2016
* Its called systemd
* Fix link to systemd homepage
this commit changes and streamlines the dns_config into a new
key, dns. It removes a combination of outdates and incompatible
configuration options that made it easy to confuse what headscale
could and could not do, or what to expect from ones configuration.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>