Add Warning for playlist as it may violate GitHubs tos

[abe-101]

Running this tool on an entire playlist is likely to trigger github to automatically suspend the users account as it violates the tos.

[Wabri]

I asked a github staff member, I will let you know the answer!

[abe-101]

Any updates?

[Wabri]

It would seem to be a case that should not generate problems, but in my opinion we should still leave the warning