/usr/share/gtk-doc/html/telepathy-glib is in libtelepathy-glib-doc 0.24.1-1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/gtk-doc/html/../../doc/libtelepathy-glib-doc/telepathy-glib
/usr/share/gtk-doc/html/../../doc/libtelepathy-glib-doc/telepathy-glib