Documentation: PUBLISH is actually supported, right?

[nelz9999]

In the top-level README.md, it lists "Pub/Sub" under the "NOT supported" heading.

But, in my reading of the code, at least the "PUBLISH" command would be supported the way most other commands would be:

• the node is chosen via interpreting the first argument (e.g. "channel" for PUBLISH, as per the Redis command doc: https://redis.io/commands/publish)
• then the rest of the behavior is delegated to the chosen node

If this is the case, then I'd be willing to submit a PR for the documentation... But I just wanted to verify my understanding.