anchor.diff:  than one instance, follow the same procedure for each one.
   
   Now return to the *Metrics/Summary* page. After a short delay, you
  -should see a lot more metrics -- well over 1000 in your list.
  +should see a lot more metrics—well over 1,000 in your list.
   
   Congratulations. Your datadog integration is complete!
   
   == Using Datadog
   
  -The datadog site has lots of documentation, and we will not try to
  +The Datadog site has lots of https://docs.datadoghq.com/[documentation], so we won't
   repeat any of that here. We will just suggest a few quick steps to get
   started:
   
  
positive.code: 
  You should be running Kill Bill version 2021.9 or later. This version
  can be configured to provide its full collection of Kill Bill metrics to
  datadog (and several other analysis tools). If you open the Kill Bill
  admin page in your browser, it should show that you are
  running the "Kill Bill Premium edition":
  
  
negative.code: only describe the Ubuntu environment itself. You do not yet have the
  Kill Bill metrics. To fix this, proceed to the next step.
  
  == Set Up the Authorization
  
  To authorize the sending of the Kill Bill metrics, it is necessary to
  edit two lines in this file:
  
   `/var/lib/tomcat/bin/setenv2.sh`.
  
     This file contains configuration information for `tomcat`, which manages the
  KillBill web applications.
  
  This is a small file. The two lines to be edited are:
  