add github stuff

CODEOWNERS

@@ -0,0 +1 @@
+* patrick.koss@mail.schwarz marius.galm@mail.schwarz simon.stier@mail.schwarz

CONTRIBUTING.md

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+# Contributing to Certbot DNS-STACKIT Authenticator Plugin
+
+Welcome and thank you for making it this far and considering contributing to certbot-dns-stackit.
+We always appreciate any contributions by raising issues, improving the documentation, fixing bugs or adding new
+features.
+
+Before opening a PR please read through this document.
+If you want to contribute but don't know how to start or have any questions feel free to reach out to us
+on [Github Discussions](https://github.com/stackitcloud/certbot-dns-stackit/discussions). Answering any questions or
+discussions there is also a great way to contribute to the community.
+
+## Process of making an addition
+
+> Please keep in mind to open an issue whenever you plan to make an addition to features to discuss it before
+> implementing it.
+
+To contribute any code to this repository just do the following:
+
+1. Make sure you have Go's latest version installed
+2. Fork this repository
+3. Run `make build` to make sure everything's setup correctly
+4. Make your changes
+   > Please follow the [seven rules of greate Git commit messages](https://chris.beams.io/posts/git-commit/#seven-rules)
+   > and make sure to keep your commits clean and atomic.
+   > Your PR won't be squashed before merging so the commits should tell a story.
+   >
+   > Optional: Sign-off on all Git commits by running `git commit -s`.
+   > Take a look at
+   the [Gihub Docs](https://docs.github.com/en/authentication/managing-commit-signature-verification/signing-commits)
+   for further information.
+   >
+   > Add documentation and tests for your addition if needed.
+5. Run `make lint test` to ensure your code is ready to be merged
+   > If any linting issues occur please fix them.
+   > Using a nolint directive should only be used as a last resort.
+6. Open a PR and make sure the CI pipelines succeed.
+   > Your PR needs to have a semantic title, which can look like: `type(scope) Short Description`
+   > All available `scopes` & `types` are defined
+   in [semantic.yml](https://github.com/stackitcloud/certbot-dns-stackit/blob/main/.github/semantic.yml)
+7. Wait for one of the maintainers to review your code and react to the comments.
+8. After approval merge the PR
+9. Thank you for your contribution! :)

Makefile

@@ -18,3 +18,6 @@ setup-venv:
 .PHONY: venv
 venv: setup-venv
 	$(VENV_PATH)/bin/pip install -e .
+
+.PHONY: build
+build: venv