gituser/pypi: links for pair-diff

gituser/pypi pair_diff-1.2.0.tar.gz
gituser/pypi pair_diff-1.2.0-py3-none-any.whl
gituser/pypi pair_diff-1.1.0.tar.gz
gituser/pypi pair_diff-1.1.0-py3-none-any.whl