Update PYPI release version

[sarashenyy]

The current release version of this responsitory is berliner-0.2.0, install with:
pip install git+https://github.com/hypergravity/berliner.git

The PYPI release version is berliner-0.1.1, install with:
pip install berliner

Please update PYPI release version with berliner-0.2.0 🐶