[discovery] Discovery's mission and roadmap

Hello! I've been working a presentation <https://docs.google.com/presentation/d/1ctlqdLA__0OxDuO7mJEIDLP-xt9a7E4jv4INMlZAHdQ> that gives a summary of who Discovery is, what our mission is, and what's coming up for the rest of the year. I'd like to share it all with you! This presentation is a living document. The content and style can and will change over time, perhaps even drastically. This is especially true for the roadmap slide. I made it clear in the presentation, but it's worth pointing out again.:-) If there are any questions, I'd be happy to answer them! Thanks, Dan -- Dan Garry Lead Product Manager, Discovery Wikimedia Foundation