I have installed the
vim-outliner packages, which are addons for vim. Both come with documentation files, that are installed into the
/usr/share/vim/addons/doc directory. Issuing the 'help' command from within vim, the documentation is not availabe, because it had not been installed properly. This might apply to other addons as well.
How can I create the help tags for these addons that I expected to be created by the installation routine?