root/pypi: links for secp256k1-zkp-mw

root/pypi secp256k1-zkp-mw-0.4.2.tar.gz
root/pypi secp256k1-zkp-mw-0.4.0.tar.gz
root/pypi secp256k1-zkp-mw-0.3.0.tar.gz
root/pypi secp256k1-zkp-mw-0.1.0.tar.gz