/usr/share/doc/pd-mjlib/examples is in pd-mjlib 0.1.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/pd-mjlib/../../../lib/pd/extra/mjlib/examples
/usr/share/doc/pd-mjlib/../../../lib/pd/extra/mjlib/examples