/usr/share/doc/pd-freeverb/README is in pd-freeverb 1.2-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/pd-freeverb/../../../lib/pd/extra/freeverb~/README.txt
/usr/share/doc/pd-freeverb/../../../lib/pd/extra/freeverb~/README.txt