anchor.diff:      (:p "(See " (:nxref :function t url-dispatching-handler)
           " for a simpler way to achieve the same result.)")
       (:p "Or, if you want to set multiple handlers at once,")
  -    (:pre (:code "
  -\(define-configuration web-buffer
  +    (:pre (:code "(define-configuration web-buffer
     ((request-resource-hook
       (reduce #'hooks:add-hook
               '(old-reddit-handler auto-proxy-handler)
  
positive.code: say to develop Nyxt or extensions.")
      (:p "Example to create a development profile that stores all data in "
          (:code "/tmp/nyxt") " and stores bookmark in an encrypted file:")
      (:pre (:code "
  \(define-class dev-profile (nyxt-profile)
     ((files:name :initform \"nyxt-dev\"))
     (:documentation \"Development profile.\"))
  
  
negative.code: restricted to class slot configuration.  If you want to do anything else on
  class instantiation, you'll have to specialize the
  lower-level " (:nxref :function t customize-instance) " generic function.  Example:"
  (:pre (:code "(defmethod customize-instance ((buffer buffer) &key)
    (echo \"Buffer ~a created.\" buffer))")))
      (:p "All classes with metaclass " (:nxref :class t user-class) " call "
          (:nxref :function t customize-instance) " on instantiation,
  