message: Add SeatGeek to ADOPTERS.md
diff: @@ -98,3 +98,4 @@ _If you're using Backstage in your organization, please try to add your company
  | [Fortum](https://www.fortum.com/) | [@brunoamaroalmeida](https://github.com/brunoamaroalmeida), [@dhaval-vithalani](https://github.com/dhaval-vithalani), [@sunilkumarmohanty](https://github.com/sunilkumarmohanty) | A central portal containing information about our applications, services, processes and other software assets to be used by Fortum software engineering community. |
  | [Procore](https://www.procore.com/jobs/engineering) | [@shayon](https://github.com/Shayon), [@jamesdabbs-procore](https://github.com/jamesdabbs-procore) | Developer portal - centralized software catalog and templates to enable self serve and reduce cognitive load. |
  | [Bradesco](https://banco.bradesco/html/classic/sobre/index.shtm) | [@danilosoarescardoso](https://github.com/danilosoarescardoso) | Centralized developer portal with software catalog, software templates, techdocs and some plugins from community and by our own. |
  +| [SeatGeek](https://seatgeek.com) | [@zhammer](https://github.com/zhammer) | Software catalog and documentation platform |
  