Document how to find the right network interface for WatchYourLAN

[henriquesebastiao]

It would be interesting to add to the application description information on how to find the appropriate network interface to scan, in case the defaults eth0 wlan0 enp1s0 are not sufficient.

In my case, for example, I have to access Umbrel via ssh and look for the name of my network interface, which is eno1, as seen below:

Note

I'm using Cloudflare tunnel and Tailscale on my Umbrel, I can't tell if this is related to the exotic name for my network interface.

After configuring the appropriate network interface for my case in WatchYourLAN, I can find all my hosts successfully: