Add license and copyright notice to README

Author: georg-schwarz

README.md

@@ -2,6 +2,8 @@
 
 Reusable libraries for our node microservices. These packages do NOT contain any business knowledge, but pure reusable functionality that would repeat over all services.
 
+The main repository can be found here: [JValue Open Data Service](https://github.com/jvalue/open-data-service)
+
 
 ## How to use
 * add a `.npmrc` file with the following content to access our package registry
@@ -15,3 +17,14 @@ Reusable libraries for our node microservices. These packages do NOT contain any
 | **Name** | **Package Name** | **Current Version** | **Description** |
 |---|---|---|---|
 | Basics | `@jvalue/node-dry-basics` | `0.0.1` | *all basic functionality that need no dependencies* |
+
+
+## Contact us
+
+If you have any questions or would like to contact us, you can easily reach us via gitter channel. Issues can be reported via GitHub.
+
+## License
+
+Copyright 2020 Friedrich-Alexander Universität Erlangen-Nürnberg.
+
+Node-DRY is licensed under the Apache License, Version 2.0. See [LICENSE](/LICENSE) for the full license text.