[DOC] Prepare for OSS Release

- Adjust README
- Add CONTRIBUTING file

CONTRIBUTING.md

@@ -0,0 +1,41 @@
+## How to contribute to TRENTOS
+
+#### **Did you find a bug?**
+
+* **Do not open up a GitHub issue if the bug is a security vulnerability
+  in TRENTOS**, and instead send an email to [[email protected]](mailto:[email protected]?subject=TRENTOS:%20Security%20Vulnerability).
+
+* **Ensure the bug was not already reported** by searching on GitHub under [Issues](https://github.com/TRENT-OS/trentos/issues).
+
+* If you're unable to find an open issue addressing the problem, [open a new one](https://github.com/TRENT-OS/trentos/issues/new). Be sure to include a **title and clear description**, as much relevant information as possible, and a **code sample** or an **executable test case** demonstrating the expected behavior that is not occurring.
+
+
+#### **Did you write a patch that fixes a bug?**
+
+* Open a new GitHub pull request with the patch.
+
+* Ensure the pull request description clearly describes the problem and solution. Include the relevant issue number if applicable.
+
+* If the bug is in one of the submodules, please open a pull request in all modules up to the TRENTOS root repository. The root repository is the central place for all pull requests.
+
+
+#### **Do you intend to add a new feature or change an existing one?**
+
+* Please open an issue in advance and get some feedback and advice on the proposed feature. If you already have code to contribute, feel free to open a pull request.
+
+* Any pull request in one of the submodules must be accompanied by pull requests moving the feature commit into the root repository.
+
+
+#### **Do you have questions about the source code?**
+
+* Feel free to open an issue and describing your question.
+
+
+#### **Do you want to contribute to the TRENTOS documentation?**
+
+* Open an issue and tag it with the `documentation` label. Describe you intended changes and or open a pull request with your changes and link it.
+
+
+Thanks! :heart: :heart: :heart:
+
+TRENTOS Team

README.md

@@ -100,11 +100,8 @@ Even more demos are available as [submodules](https://github.com/orgs/TRENT-OS/r
 ## Contributing
 
 Contributions are always welcome. 
-To get started please read our [CONTRIBUTING.md](./CONTRIBUTING.md).
-
-TODO: Add contributing
 
-If you have any questions or encounter any bugs, please do not hesitate to open an **issue**.
+To get started please read our [CONTRIBUTING.md](./CONTRIBUTING.md).
 
 
 ## Docker Images
@@ -116,11 +113,10 @@ Dockerfiles are hosted in [Docker Images](https://github.com/TRENT-OS/docker_ima
 
 TRENTOS is available under the OSS GPLv2-or-later license.
 Upon request commercial licensing options are available.
-Please contact: [[email protected]](mailto:[email protected]?subject=TRENTOS:%20Commercial%20Licensing)
- for more information.
+Please contact: [[email protected]](mailto:[email protected]?subject=TRENTOS:%20Commercial%20Licensing) for more information.
 
-Some few components are only available und different licensing terms. 
-Due to the microkernel concept this should not be an issue as long as these are used as a TRENTOS component.
+A select few components are only available under different licensing terms.
+Due to the microkernel concept this may not be an issue as long as these are used as a distinct TRENTOS component.
 
 TODO: Link documentation explaining the seL4 component concept.