message: Update ADOPTERS.md
  Added Tractable AI
diff: @@ -4,7 +4,7 @@ _If you're using Backstage in your organization, please try to add your company
  _You can do this by using the [Adopter form](https://info.backstage.spotify.com/public-adopter-hand-raiser-form) or by editing this file after following the [CONTRIBUTING.md](./CONTRIBUTING.md)._
  | Organization | Contact | Description of Use |
  -| --------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  +|-----------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
  | [Spotify](https://www.spotify.com) | [@leemills83](https://github.com/leemills83) | Main interface towards all of Spotify's infrastructure and technical documentation. |
  | [bol.com](https://www.bol.com) | [@acierto](https://github.com/acierto), [@clanghout](https://github.com/clanghout) | Initial work being done to unify platform tooling. |
  | [DFDS](https://www.dfds.com) | [@carlsendk](https://github.com/carlsendk) | V2 self-service platform. |
  @@ -223,3 +223,4 @@ _You can do this by using the [Adopter form](https://info.backstage.spotify.com/
  | [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)) |
  +| [Tractable AI](https://tractable.ai/) | [Stephan Schielke](https://github.com/stephanschielke) | We are hitting a critical point in our scale (100+ engineers) and need to get a handle on discoverability and ownership. The Service Catalog, TechDocs and Search are essential to us to achieve that. |
  