This allows you to bridge existing HTTP/S services into your tailnet
using the Let's Encrypt[1] functionality. This will allow you to run
multiple services on the same computer and still have them point at
different target HTTP services.
This also includes an example systemd template unit that lets you easily
set up multiple instances of tailtlsproxy on the same machine.
[1]: https://tailscale.com/blog/tls-certs/
Signed-off-by: Xe <xe@tailscale.com>
