Install kdoctools by entering the following commands in the terminal:
sudo apt update sudo apt install kdoctools
Description:
various tools for accessing application documentation
This package provides KDE documentation tools (including the "help" KIO slave) for accessing documentation of KDE and GNOME applications. . This package is part of the KDE Development Platform libraries module.
Homepage: http://www.kde.org/
Version: 4:4.14.38-0ubuntu3
Section: universe/libs