When you need to draw attention to a particular word or phrase in the prose of your documentation, such as when introducing a key concept or new word, or when discussing a particular word, use italics.
Recommended: A Clos network is a kind of multistage circuit switching network, first formalized by Charles Clos in 1952.
Not recommended: A Clos network is a kind of multistage circuit switching network, first formalized by Charles Clos in 1952.