anchor.diff:  
   ===== Level 5
   
  -====== Level 6
  +Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam 
  +nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, 
  +sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. 
  +Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
  +
  +===== Level 6
  +
  +Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam 
  +nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, 
  +sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. 
  +Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
   
   
   [NOTE]
  
positive.code: incorrectly processed as list.
  ....
   
  .Optional Title
  [quote, cite author, cite source]
  ____
  
negative.code: :toc:
  :source-highlighter: highlightjs
  :icons: font
  :experimental:
  
  = Level 1
  John Doe <john@mymail.com>
  v2.0, February 2003: Rewritten for version 2 release.
  
  
  Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam 
  nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, 
  