docs(readme): add pypi package information to readme (#237)

Fixes: #223

README.md

@@ -6,6 +6,7 @@ now with additional features and ongoing maintenance.
 | __CI__ | [![pre-commit.ci status][pre-commit-ci-badge]][pre-commit-ci-status] [![ci][ci-badge]][ci-workflow] [![coverage][coverage-badge]][ci-workflow] |
 | :--- | :--- |
 | __Docs__ | [![docs][docs-badge]][docs-workflow] |
+| __Package__ | [![pypi-version][pypi-version-badge]][pypi-url] [![pypi-python-versions][pypi-python-versions-badge]][pypi-url]|
 | __Meta__ | [![OpenSSF Scorecard][scorecard-badge]][scorecard-url] [![hatch][hatch-badge]][hatch] [![ruff][ruff-badge]][ruff] [![mypy][mypy-badge]][mypy] [![License][license-badge]][license] |
 
 oaipmh-scythe is a lightweight [OAI-PMH](http://www.openarchives.org/OAI/openarchivesprotocol.html)
@@ -38,6 +39,8 @@ oaipmh-scythe is built with:
 
 ## Installation
 
+You can install oaipmh-scythe via pip from [PyPI][pypi-url]:
+
 ```console
 python -m pip install oaipmh-scythe
 ```
@@ -71,7 +74,6 @@ This is a fork of [sickle](https://github.com/mloesch/sickle) which was original
 oaipmh-scythe is distributed under the terms of the [BSD license](https://spdx.org/licenses/BSD-3-Clause.html).
 
 <!-- Markdown links -->
-<!-- dynamic -->
 [ci-workflow]: https://github.com/afuetterer/oaipmh-scythe/actions/workflows/main.yml
 [ci-badge]: https://github.com/afuetterer/oaipmh-scythe/actions/workflows/main.yml/badge.svg
 [coverage-badge]: https://img.shields.io/endpoint?url=https://gist.githubusercontent.com/afuetterer/fcb87d45f4d7defdfeffa65eb1d65f63/raw/coverage-badge.json
@@ -82,7 +84,10 @@ oaipmh-scythe is distributed under the terms of the [BSD license](https://spdx.o
 [docs-badge]: https://github.com/afuetterer/oaipmh-scythe/actions/workflows/docs.yml/badge.svg
 [scorecard-url]: https://securityscorecards.dev/viewer/?uri=github.com/afuetterer/oaipmh-scythe
 [scorecard-badge]: https://api.securityscorecards.dev/projects/github.com/afuetterer/oaipmh-scythe/badge
-<!-- static -->
+[pypi-url]: https://pypi.org/project/oaipmh-scythe/
+[pypi-version-badge]: https://img.shields.io/pypi/v/oaipmh-scythe.svg?logo=pypi&label=PyPI
+[pypi-downloads-badge]: https://img.shields.io/pypi/dm/oaipmh-scythe.svg?color=blue&label=Downloads&logo=pypi
+[pypi-python-versions-badge]: https://img.shields.io/pypi/pyversions/oaipmh-scythe.svg?logo=python&label=Python
 [license]: https://spdx.org/licenses/BSD-3-Clause.html
 [license-badge]: https://img.shields.io/badge/License-BSD_3--Clause-blue.svg
 [hatch]: https://github.com/pypa/hatch
@@ -91,5 +96,3 @@ oaipmh-scythe is distributed under the terms of the [BSD license](https://spdx.o
 [ruff-badge]: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json
 [mypy]: https://mypy-lang.org
 [mypy-badge]: https://img.shields.io/badge/types-mypy-blue.svg
-[test-pypi]: https://test.pypi.org/
-[pip]: https://pip.pypa.io/