Doc: release process

Document release process.

Closes #21.

Author: dweindl

doc/contributing.rst

@@ -35,3 +35,20 @@ To set up the pre-commit hooks in your local environment, follow these steps:
 
 3. You're all set! The pre-commit hooks will now run automatically before each
    commit.
+
+
+Release Process
+---------------
+
+To ensure a smooth release process, we follow these steps:
+
+1. Update the release notes in ``doc/CHANGELOG.rst`` with the latest changes
+   and version number.
+
+2. Create a `new release <https://github.com/ICB-DCM/C-COMPASS/releases/new>`__
+   via GitHub, following the Python versioning specifier scheme
+   for the tag name (e.g., ``v1.0.0``). (For more information, see the
+   `PyPA guide <https://packaging.python.org/en/latest/specifications/version-specifiers/#version-specifiers>`__.)
+
+3. The release will be automatically built and published to PyPI and Zenodo
+   by GitHub Actions.