docs: update default files

* Update CONTRIBUTING
* Update README with Contributing and License reference

CONTRIBUTING.md

@@ -1,18 +1,18 @@
-# How to contribute to KDL
+# How to contribute to helm-charts
 
-This document provides guidelines for contributing to the *KDL* project.
+This document provides guidelines for contributing to the *helm-charts* project.
 
 ## How can I contribute?
 
 ### Did you find a bug?
 
-* **Ensure the bug has not already been reported** by searching on GitHub under [Issues](https://github.com/konstellation-io/kdl-server/issues).
-* If you cannot find an open issue addressing the problem, [open a new one](https://github.com/konstellation-io/kdl-server/issues/new). Include a **title and clear description**, as much relevant information as possible, and a **code sample** or an **executable test case** demonstrating the unexpected behavior.
+* **Ensure the bug has not already been reported** by searching on GitHub under [Issues](https://github.com/konstellation-io/helm-charts/issues).
+* If you cannot find an open issue addressing the problem, [open a new one](https://github.com/konstellation-io/helm-charts/issues/new). Include a **title and clear description**, as much relevant information as possible, and a **code sample** or an **executable test case** demonstrating the unexpected behavior.
 * Use the relevant bug report templates to create the issue, if available.
 
 ### Do you intend to add a new feature or change an existing one?
 
-* Please discuss first ([open an issue](https://github.com/konstellation-io/kdl-server/issues)) before starting any significant pull request (e.g., implementing features, refactoring code) to avoid spending time on something that might not be merged.
+* Please discuss first ([open an issue](https://github.com/konstellation-io/helm-charts/issues)) before starting any significant pull request (e.g., implementing features, refactoring code) to avoid spending time on something that might not be merged.
 * Adhere to the project's coding conventions (indentation, accurate comments, etc.) and any other requirements (such as test coverage, documentation).
 
 ## Styleguides

README.md

@@ -48,3 +48,11 @@ Charts are also available in OCI format. The list of available charts can be fou
 ```console
 helm install [RELEASE_NAME] oci://ghcr.io/konstellation-io/helm-charts/<helm-chart-name> --version=[version]
 ```
+
+## Contributing
+
+Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduct, and the process for submitting pull requests to us.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.