anchor.diff:  Also, don't forget to give your production cluster a name, which is used
   to discover and auto-join other nodes:
   
  -[source,js]
  +[source,yaml]
   --------------------------------------------------
   cluster:
     name: <NAME OF YOUR CLUSTER>
  
positive.code: In order to test how many open files the process can open, start it with
  `-Des.max-open-files` set to `true`. This will print the number of open
  files the process can open on startup.
  
  [float]
  [[setup-configuration-memory]]
  
negative.code: instead of the default file system based one (the format can be either
  YAML or JSON):
  
  [source,sh]
  --------------------------------------------------
  $ curl -XPUT http://localhost:9200/kimchy/ -d \
  '
  