message: Adding H-E-B to the list
diff: | [DFDS](https://www.dfds.com) | [@carlsendk](https://github.com/carlsendk) | V2 self-service platform. |
  | [Roadie](https://roadie.io) | [@dtuite](https://github.com/dtuite) | Hosted, managed Backstage with easy set-up |
  | [Roku](https://www.roku.com) | [@timurista](https://github.com/timurista) | Initial work on Cloud engineering service platform. |
  +| [H-E-B](https://www.heb.com) | [@german-j-rodriguez](https://github.com/german-j-rodriguez) | Initial work on Engineering Portal service platform. |
  