root/pypi: links for doi2bib

root/pypi doi2bib-0.4.0-py3-none-any.whl
root/pypi doi2bib-0.4.0-py2-none-any.whl
root/pypi doi2bib-0.3.0.tar.gz
root/pypi doi2bib-0.2.3.tar.gz
root/pypi doi2bib-0.2.2.tar.gz
root/pypi doi2bib-0.2.1.tar.gz