Affiliated package authors please:

• Open a PR adding these entries for your package in registry.yml:
  • description (some packages have none)
  • image -- provide a link to a representative of your package
  • educational_materials_link -- if you have a tutorial you recommend, or a link to a blog post or article (whether written by or not), please add it here. If you have an idea for a tutorial feel free to put it here instead!
  • Feel free to update any other entries, and they'll get propagated back to the official affiliated package registry.
• Take a look at the draft NUMFocus blog post if you want (some time after end-of-day on July 5)