message: Add Lunar as adopter
diff: | [Expedia Group](https://www.expediagroup.com) | [Mike Turner](mailto:miturner@expediagroup.com), [Sneha Kumar](mailto:snkumar@expediagroup.com), [@guillermomanzo](https://github.com/guillermomanzo) | EG Common Developer Toolkit |
  | [Paddle.com](https://paddle.com) | [Ioannis Georgoulas](https://github.com/geototti21) | Developer portal (Tech Docs, Service Catalog, Internal Tooling), we use vanilla Backstage FE and custom BE implementation in Go |
  | [Acast.com](https://acast.com) | [Olle Lundberg](https://github.com/lndbrg) | Developer portal with tech docs, service catalog and a bunch of other internal tooling |
  +| [Lunar](https://lunar.app) | [Jacob Valdemar](https://github.com/JacobValdemar) | Internal developer portal for service overview and insights, API documentation, technical guides, onboarding guides and RFC's. |
  