docs: update contribution guide

CONTRIBUTING.md

@@ -0,0 +1,20 @@
+# Contributing to tenv
+
+## How to contribute
+
+If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement".
+
+1. Fork the Project
+2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)
+3. Commit and sign your Changes (`git commit -s -m 'Add some AmazingFeature'`)
+    - We use DCO as a per-commit sign-off made by a contributor, stating that they agree to the terms published at https://developercertificate.org/ for that particular contribution.
+4. Push to the Branch (`git push origin feature/AmazingFeature`)
+5. Open a Pull Request
+
+## Code of Conduct
+
+We expect all contributors to follow our [Code of Conduct](CODE_OF_CONDUCT.md) when participating in our community.
+
+## License
+
+tenv is released under the [Apache License](LICENSE). By contributing to this project, you agree to license your contributions under the same license.

README.md

@@ -1387,17 +1387,9 @@ terraform:
 
 Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**.
 
-If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement".
-Don't forget to give the project a star! Thanks again!
-
-1. Fork the Project
-2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)
-3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)
-4. Push to the Branch (`git push origin feature/AmazingFeature`)
-5. Open a Pull Request
-
-<p align="right">(<a href="#readme-top">back to top</a>)</p>
+Check out our [contributing guide](CONTRIBUTING.md) to get started.
 
+Don't forget to give the project a star! Thanks again!
 
 <a id="community"></a>
 ## Community