message: docs(addopters): Add Operate First to ADOPTERS.md
diff: @@ -222,3 +222,4 @@ _You can do this by using the [Adopter form](https://info.backstage.spotify.com/
  | [MSCI](http://msci.com) | [Stephen Burrows](mailto:stephen.burrows@msci.com) | Developer portal, service catalog, documentation and tooling |
  | [ESW](https://esw.com) | [Alisson Fabiano](https://github.com/afabianoo), [Bruno Quintella](https://github.com/quintelab) and [Guilherme Oenning](https://github.com/goenning) | Backstage is our one stop shop to find everything related to all our services, such as ownership, dependencies, production status, tech health and much more. |
  | [FanDuel](https://fanduel.com) | [Diego Herrera](https://github.com/diegoh), [Christy Campbell](https://github.com/FD-ChristopherCampbell) | We use backstage as our developer portal to provide visibility of our software, ownership, strategy, and the state of maturity across disciplines. |
  +| [Operate First](https://www.operate-first.cloud/) | [Tom Coufal](https://github.com/tumido), [Sam Kopecky](https://github.com/samokopecky) | Backstage provides us with a public service catalog and serves as a gateway to our community cloud. Our instance is publicly available to everyone [here](https://service-catalog.operate-first.cloud/) ([source](https://github.com/operate-first/service-catalog)) |
  