[opensuse-conference] sending mail to speakers

Heya, All our speakers are on indico, right? Or not? I'd like to send a mail to the speakers about the materials we have for them: - Speakers' guidelines - Tips and tricks, including a how-to on preparing a talk - article about how to prepare and give a workshop I would also like to update the article about how to organize a BoF and get that out to our conference goers unless somebody objects, but I'll do that closer to the deadline for organizing BoF sessions. /Jos