docs: add archive notice (#84)

README.md

@@ -25,6 +25,8 @@
     </p>
 </div>
 
+> Notice: This repository, miranum-platform, is now archived. All future development and updates will take place in the [miranum](https://github.com/Miragon/miranum) repository. Please refer to the new repository for the latest changes and contributions.
+
 
 ## About The Project
 Miranum Platform is an open source production ready process automation platform with a focus on human-task driven processes.
@@ -116,4 +118,4 @@ Distributed under the MIT License. See `LICENSE` file for more information.
 [license-url]: https://github.com/Miragon/miranum-platform/blob/main/LICENSE
 
 [c7-shield]: https://img.shields.io/badge/Compatible%20with-Camunda%20Platform%207-blue.svg?style=for-the-badge
-[c7-url]: https://camunda.com/de/platform-7/
+[c7-url]: https://camunda.com/de/platform-7/