root/pypi: links for tfidf

root/pypi tfidf-0.0.6.tar.gz
root/pypi tfidf-0.0.4.tar.gz
root/pypi tfidf-0.0.3.tar.gz
root/pypi tfidf-0.0.2.tar.gz
root/pypi tfidf-0.0.1.tar.gz