root/pypi: links for fast-downward-textworld

root/pypi fast_downward_textworld-20.6.3.tar.gz
root/pypi fast_downward_textworld-20.6.3rc1.tar.gz
root/pypi fast_downward_textworld-20.6.3rc1-py3-none-any.whl
root/pypi fast_downward_textworld-20.6.2.tar.gz
root/pypi fast_downward_textworld-20.6.2rc1.tar.gz
root/pypi fast_downward_textworld-20.6.1.tar.gz
root/pypi fast_downward_textworld-20.6.tar.gz