refer back to GitLab CE's CONTRIBUTING.md file

README.md

@@ -15,6 +15,11 @@ multiple repositories and it requires Ruby, Go, Postgres/MySQL, Redis
 and more to run. GDK helps you install and configure all these
 different components, and start/stop them when you work on GitLab.
+## Contributing to the GDK
+
+The source of GitLab Development Kit is [hosted on GitLab.com](https://gitlab.com/gitlab-org/gitlab-development-kit/) and contributions are welcome, per the [contribution guidelines](https://gitlab.com/gitlab-org/gitlab-ce/CONTRIBUTING.md) and the contributor license agreements linked to from there.
+
+
 ## Getting started
 To start using GDK follow these three steps: