anchor.diff:  
   Existing external link::
     points to https://github.com/aim42
  +
   
   === Background
   
  
positive.code: = Producing Html-Errors With Asciidoc(tor)
  :experimental:
  
  // where are images located?
  :imagesdir: ./images
  
  [.lead]
  This document deliberately contains several (semantic) errors
  in the asciidoc source. It shall be used to test the htmlSanityChecker.
  
  
  // this generates a mailto: link...
  Authored by Gernot Starke <gernot.starke@innoq.com>
  
  
  
  // tag::html-with-errors[]
  
  
  [[first]]
  
negative.code: 
  [source,html]
  ----
  <a href="file.html">File</a> <!-- <1>-->
  ---- 
      
  
  include::includes/imagemaps.adoc[]
  