message: docs: add organization that uses superset
diff: @@ -147,6 +147,9 @@ Join our growing community!
  ### HR / Staffing
  - [Symmetrics](https://www.symmetrics.fyi)
  +### News
  +- [Prensa Iberica](https://www.prensaiberica.es/) [@zamar-roura]
  +
  ### Others
  - [Dropbox](https://www.dropbox.com/) [@bkyryliuk]
  - [Grassroot](https://www.grassrootinstitute.org/)
  