loongson/pypi: links for pdfcomparator

loongson/mirror pdfcomparator-0.3.0.tar.gz
loongson/mirror pdfcomparator-0.3.0-py2-none-any.whl
loongson/mirror pdfcomparator-0-2-0.tar.gz
loongson/mirror pdfcomparator-0-1-0.tar.gz
loongson/mirror pdfcomparator-0_2_0-py2-none-any.whl
loongson/mirror pdfcomparator-0_1_0-py2-none-any.whl