this removes the hard-coded listing from the Haskell examples, which can later be replaced by
a dynamic one as for the Python interpreters
* fix broken reference
* clarify why using `nix-env --query` makes sense
Co-authored-by: wamirez <wamirez@protonmail.com>
also updates nixdoc to 2.3.0. the nixdoc update is not a separate commit
because that would leave the manual build broken for one commit,
potentially breaking bisects and rebases.
