anchor.diff:  
   This is how the visualization of the parent / child relationship of spans would look like:
   
  -image::parents.png[Parent child relationship]
  +image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/master/docs/src/main/asciidoc/images/parents.png[Parent child relationship]
   
   === Purpose
   
  
positive.code: 
  Altogether there are *10 spans* . If you go to traces in Zipkin you will see this number:
  
  image::zipkin-traces.png[Traces]
  
  However if you pick a particular trace then you will see *7 spans*:
  
  image::zipkin-ui.png[Traces Info propagation]
  
  NOTE: When picking a particular trace you will see merged spans. That means that if there were 2 spans sent to
  Zipkin with Server Received and Server Sent / Client Received and Client Sent
  
negative.code: 
  Visualization of what *Span* and *Trace* will look in a system together with the Zipkin annotations:
  
  image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-sleuth/master/docs/src/main/asciidoc/images/trace-id.png[Trace Info propagation]
  
  Each color of a note signifies a span (7 spans - from *A* to *G*). If you have such information in the note:
  
  