root/pypi: links for gfmetadata

root/pypi gfmetadata-0.2.4.tar.gz
root/pypi gfmetadata-0.2.4-py3-none-any.whl
root/pypi gfmetadata-0.2.1.tar.gz
root/pypi gfmetadata-0.2.1-py3-none-any.whl