/usr/share/doc/rest2web-doc/html is in rest2web-doc 0.5.2~alpha+svn-r248-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/rest2web-doc/../rest2web/html
/usr/share/doc/rest2web-doc/../rest2web/html