/usr/share/doc/liquidsoap-plugin-ao/README is in liquidsoap-plugin-ao 1.0.0-4build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/liquidsoap-plugin-ao/../liquidsoap/README
/usr/share/doc/liquidsoap-plugin-ao/../liquidsoap/README