anchor.diff:  only describe the Ubuntu environment itself. You do not yet have the
   Kill Bill metrics. To fix this, proceed to the next step.
   
  -== Setting up the Authorization
  +== Set Up the Authorization
   
   To authorize the sending of the Kill Bill metrics, it is necessary to
  -edit two lines in the file `/var/lib/tomcat/bin/setenv2.sh`. This file
  -contains configuration information for `tomcat`, which manages the
  +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:
  
positive.code: 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.
  
  Congratulations. Your datadog integration is complete!
  
  == Using Datadog
  
  The datadog site has lots of documentation, and we will not try to
  repeat any of that here. We will just suggest a few quick steps to get
  started:
  
  
negative.code: -Dcom.killbill.datadog.apiKey=
  ```
  
  These should be changed to:
  
  ```
  -Dcom.killbill.datadog.enable=true
  -Dcom.killbill.datadog.apiKey=__Your-API-Key__
  ```
  
  The API key to be added is the same one contained in the command you
  used to install the agent.
  
  After editing the file, go to your AWS EC2 dashboard and *reboot the
  