anchor.diff:      (:li (command-markup 'vcs-clone) ": Clone version control repository
   matching current URL.")
       (:li (command-markup 'download-open-file) ", " (command-markup 'download-open-file)
  -         ": Open file in Nyxt or externally.  See `*open-file-function*'.")
  +         ": Open file in Nyxt or externally.  See " (:code "*open-file-function*") ".")
       (:li (command-markup 'edit-with-external-editor)
            ": Edit selected HTML input tag with an external editor.")
       (:li (command-markup 'quit) ": Close all Nyxt windows and quit."))
  
positive.code:     (:li (command-markup 'describe-variable) ": View the value and documentation
  of a variable.")
      (:li (command-markup 'describe-class) ": Lookup a class documentation and all its slots.")
      (:li (command-markup 'describe-slot) ": Lookup a class slot value and documentation."))
     (:p "A good starting point is to study the documentation of the classes "
         (:code "browser") ", " (:code "window") ", " (:code "buffer") " and "
         (:code "prompt-buffer") ".")))
  
negative.code:     (:li (:code "super") " (" (:code "S") "): Windows key, Command key")
      (:li (:code "meta") " (" (:code "M") "): Alt key, Option key")
      (:li (:code "shift") " (" (:code "s") "): Shift key"))
     (:p "Modifiers can be remapped, see the " (:code "modifier-translator")
         " slot of the " (:code "gtk-browser") " class.")
  
     (:h3 "Quickstart keys")
     (:ul
  