/usr/share/doc/pd-pdogg/README is in pd-pdogg 0.25.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/pd-pdogg/../../../lib/pd/extra/pdogg/README.txt
/usr/share/doc/pd-pdogg/../../../lib/pd/extra/pdogg/README.txt