Add example on how to send a message to a channel about irc

[jaraco]

Thanks for the suggestion. I'd welcome additional documentation. I've always managed by hacking through the source, but I'd be very much delighted if someone were to author some docs, especially ones that meet common needs.

The short answer to your question is that it's not easy, at least not that I've found.

In the pmxbot project, which builds on IRC, I found that to send messages from an outside source, I needed to inject them into a queue and then in a periodic, scheduled command, pop messages off the queue to send them.

It's inelegant and sure would be nice if there were a more straightforward way to send messages.