At Drupalcon, Jay Callicott and I presented “Multilingual in Drupal 8: A soup to nuts guide featuring VisitTheUSA.com and Habitat.org”, which featured a step-by-step guide to setting up a Drupal 8 site for content, interface and config translation. We ended up getting a lot of questions (I took this as a good sign), especially about how translation worked with the Paragraphs module.