anchor.diff:  
   Updating a broker is how to ingest changes a broker author has made into Cloud
   Foundry.
  -Similar to adding a broker, update causes cloud controller to fetch the catalog
  -from a broker, validate it, and update the cloud controller database with any
  +Similar to adding a broker, update causes Cloud Controller to fetch the catalog
  +from a broker, validate it, and update the Cloud Controller database with any
   changes found in the catalog.
   
   Update also provides a means to change the basic auth credentials cloud
  
positive.code: 
  ## <a id='register-broker'></a>Register a Broker ##
  
  Registering a broker causes cloud controller to fetch and validate the catalog
  from your broker, and save the catalog to the cloud controller database.
  The basic auth username and password which are provided when adding a broker are
  encrypted in cloud controller database, and used by the cloud controller to
  authenticate with the broker when making all API calls.
  Your service broker should validate the username and password sent in every
  request; otherwise, anyone could curl your broker to delete service instances.
  
negative.code: 
  <pre class="terminal">
  $ cf service-brokers
  Getting service brokers as admin...Cloud Controller
  OK
  
  Name            URL
  