2019-10-02 Welcome to MAD 2.0!

@karenword did a presentation about our new format. There is a recording, but the quality is not very good (sorry for that!). Slides: https://docs.google.com/presentation/d/1iqXPO6TGN4slUKtnpvikkNrdnrf6L2w_KEHOcfwVqZc/edit#slide=id.p

@luizirber did an intro to Discourse, including creating a new account, replying to an existing topic and finally opening your first topic (in the “Ask a Question” category).