BungeeCord Help

I am fairly new to BungeeCord but I have watched a few tutorials on it and kinda getting the fell of it. But this may sound kinda beginner-ish but, I was wandering if anyone could help me. So I want people when they join to spawn in my hub server that I am hosting from my computer. Am I able to use my .tk domain? And where should I put my .tk domain in BungeeCord config? The help would be really appreciated.

Thanks,
Faze