loongson/mirror: links for richtypo

loongson/mirror richtypo-0.2.3.tar.gz
loongson/mirror richtypo-0.2.2.tar.gz
loongson/mirror richtypo-0.2.1.tar.gz
loongson/mirror richtypo-0.2.tar.gz
loongson/mirror richtypo-0.1.tar.gz