root/pypi: links for backlink-checker

root/pypi backlink_checker-0.0.6.tar.gz
root/pypi backlink_checker-0.0.6-py3-none-any.whl
root/pypi backlink_checker-0.0.3.tar.gz
root/pypi backlink_checker-0.0.3-py3-none-any.whl
root/pypi backlink_checker-0.0.1.tar.gz
root/pypi backlink_checker-0.0.1-py3-none-any.whl