anchor.diff:  The following is an example anchor ID in an assembly file:
   
   ----
  -[id="understanding-the-monitoring-stack"]
  -= Understanding the monitoring stack
  +[id="configuring-alert-notifications"]
  += Configuring alert notifications
   ----
   
   [NOTE]
  
positive.code: The `prerequisites_`, `additional-resources_`, and `next-steps_` prefixes must end with an underscore (`_`) when declared in an anchor ID in an assembly.
  ====
  
  The following examples include IDs that are unique to the "Understanding the monitoring stack" assembly.
  
  *Example unique ID for a "Prerequisites" title*
  
  ----
  [id="prerequisites_understanding-the-monitoring-stack"]
  == Prerequisites
  ----
  
  *Example unique ID for an "Additional resources" title*
  
  ----
  [id="additional-resources_understanding-the-monitoring-stack"]
  == Additional resources
  ----
  
  *Example unique ID for a "Next steps" title*
  
  ----
  [id="next-steps_understanding-the-monitoring-stack"]
  == Next steps
  ----
  
  
negative.code: The following is an example of an anchor ID in a module file:
  
  ----
  [id="sending-notifications-to-external-systems_{context}"]
  = Sending notifications to external systems
  ----
  
  [NOTE]
  