anchor.diff:  sockets, but as it only forwards the messages, no additional application
   processing is needed.
   
  -=== URLs
  +==== URLs
   
   (((URL)))
   The _nng_ library uses ((universal resource locators)) (URLs)
  
positive.code: This will maximize compatibility across systems and minimize opportunities for
  confusion when they are parsed on different systems.
  
  == API
  
  The library API is documented at xref:libnng.3.adoc[libnng(3)].
  
  
negative.code: other than in a few specific circumstances.
  
  [[raw_mode]]
  ==== Raw Mode
  
  (((cooked mode)))(((raw mode)))
  Most applications will use _nng_ sockets in "`cooked`" mode.
  