Not technically ligatures, but the author does touch on quote marks. I see a lot of website engines swap " out for “ and ” in code snippets and it's annoying if

Not technically ligatures, but the author does touch on quote marks. I see a lot of website engines swap " out for “ and ” in code snippets and it's annoying if you copy / paste a line. Especially if it's for a language with loose syntax like shell script that doesn't catch it while parsing.