Install libghc-xmonad-extras-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-xmonad-extras-doc
Description:
third party extensions for xmonad with wacky dependencies; documentation
Various modules for xmonad that cannot be added to xmonad-contrib because of additional dependencies. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: https://github.com/xmonad/xmonad-extras
Version: 0.13.2-2
Section: universe/doc