Update README.md

Author: laszlocph

README.md

@@ -64,6 +64,7 @@ Modern software development practices _assume_ support for reviewing changes, tr
 - [Werf](https://werf.io) - GitOps tool with advanced features to build images and deploy them to Kubernetes (integrates with any existing CI system)
 - [PipeCD](https://pipecd.dev/) - Continuous Delivery for Declarative Kubernetes, Serverless and Infrastructure Applications
 - [Grant.rs](https://github.com/duyet/grant.rs) - Manage Redshift/Postgres privileges in GitOps style
+- [Gimlet](https://github.com/gimlet-io/gimlet) - The Flux-based Internal Developer Platform
 
 ## Ancillary Tools