loongson/mirror: links for mdx-variables

loongson/mirror mdx-variables-0.2.tar.gz
loongson/mirror mdx-variables-0.1.3.tar.gz
loongson/mirror mdx-variables-0.1.2.tar.gz
loongson/mirror mdx_variables-0.1.1.tar.gz
loongson/mirror mdx_variables-0.1.0.tar.gz