loongson/pypi: links for sortalgo

loongson/mirror SortAlgo-0.2.0b3.zip
loongson/mirror SortAlgo-0.2.0b3.win-amd64.exe
loongson/mirror SortAlgo-0.2.0b2.zip
loongson/mirror SortAlgo-0.2.0b2.win-amd64.exe