Add configuration section for PSR

[jvwong]

Something like:

[tool.semantic_release]
version_variable = "pyproject.toml:version"
branch = "main"                             # branch to make releases of
build_command = "poetry build"              # build dists
dist_path = "dist/"                         # where to put dists
upload_to_release = true                    # auto-create GitHub release
upload_to_pypi = false                      # don't auto-upload to PyPI
remove_dist = false                         # don't remove dists
patch_without_tag = true                    # patch release by default

https://py-pkgs.org/07-releasing-versioning#automatic-version-bumping