KDE builtin man page viewer.

Just in case you don't have khelpcenter installed (cause you've installed a minimal KDE build) there's a another way to view a man page in HTML.

In dolphin/konqueror do - 

man:

e.g. - 

man:nano.

In Dolphin this'll make a temporary HTML file and open in the default browser, in Konqueror, it'll open that temporary HTML file in itself.