anchor.diff:     (:h3 "Link navigation")
      (:p "Link-hinting allows you to visit URLs on a page without using the mouse.
   Invoke one of the commands below: several hints will appear on screen and all
  -links one the page will be listed in the minibuffer.  You can select the hints
  +links on the page will be listed in the minibuffer.  You can select the hints
   by matching against the hint, the URL or the title.")
      (:ul
       (:li (command-markup 'follow-hint) ": Go to link in current buffer.")
  
positive.code:     (bookmark-add url)))"))
  
     (:h3 "Hooks")
     (:p "Hooks provide a powerful mechanism to tweak the behaviour various events
  that occur in the context of windows, buffers, modes, etc.
  ")
     (:p "A hook holds a list of " (:i "handlers") ".  Handlers are named and
  typed functions.")
     (:p
  
negative.code:    (:h3 "Custom commands")
     (:p "Creating your own invokable commands is similar to creating a Common
  Lisp function except the form is " (:code "define-command") " instead of "
  (:code "defun") ".")
     (:p "Example:")
     (:pre (:code
            "(define-command bookmark-url ()
  