Broken link in Data.Data

Summary

Location of documentation issue: (e.g. the Haddocks of base, the GHC user's guide) https://hackage.haskell.org/package/base-4.16.1.0/docs/Data-Data.html Write a brief description of the issue.

For more information, please visit the new SYB wiki: http://www.cs.uu.nl/wiki/bin/view/GenericProgramming/SYB.

the link reports "foswiki.cs.uu.nl’s DNS address could not be found. "

Proposed improvements or changes

https://www.uu.nl/en/search?keyword=foswiki returns two results.

maybe replace with https://en.wikipedia.org/wiki/Generic_programming ?

Environment

• GHC version used (if appropriate):