/usr/lib/ghc-doc/hoogle/libghc-network-uri-doc.txt is in libghc-network-uri-doc 2.6.1.0-3build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-network-uri-doc/html/network-uri.txt