loongson/mirror: links for sigmas

loongson/mirror sigmas-0.1.2.tar.gz
loongson/mirror sigmas-0.1.2-py3-none-any.whl
loongson/mirror sigmas-0.1.2a0.tar.gz
loongson/mirror sigmas-0.1.2a0-py3-none-any.whl
loongson/mirror sigmas-0.1.1.tar.gz
loongson/mirror sigmas-0.1.1-py3-none-any.whl
loongson/mirror sigmas-0.1.1a0.tar.gz
loongson/mirror sigmas-0.1.1a0-py3-none-any.whl
loongson/mirror sigmas-0.1.0.tar.gz
loongson/mirror sigmas-0.1.0-py3-none-any.whl