/usr/share/doc/libghc-xhtml-dev/README is in libghc-xhtml-dev 3000.2.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | This package provides combinators for producing XHTML 1.0, including
the Strict, Transitional and Frameset variants.
|