anchor.diff:  
   As an aid, here are a few example queries:
   
  -* Example Query 1
  +### Example Query 1
   [source,json]
   ----
   {
  
positive.code: }
  ----
  
  * Example Query 2
  [source,json]
  ----
  {
  
negative.code: }
  ----
  
  ### Example Query 3
  [source,json]
  ----
  {
  