Channel name

[yrashk]

The documentation says the channel name has to be a string, but I just checked and binaries work just fine (which is great! binaries are the default string data type in Elixir ;)

I was wondering if it would make sense to update the documentation/typespecs to indicate this?

[evanmiller]

Yes, updating the docs to reflect this makes sense. There's not really a good reason to enforce string-only channel names.