root/pypi: links for retrowrapper

root/pypi retrowrapper-0.3.0-py3-none-any.whl
root/pypi retrowrapper-0.2.1-py3-none-any.whl
root/pypi retrowrapper-0.2.0-py3-none-any.whl
root/pypi retrowrapper-0.1.0-py3-none-any.whl