anchor.diff:  `true`), it will not be allowed to become a master (`node.master` is
   automatically set to `false`).
   
  -The `discovery.zen.minimum_master_nodes` allows to control the minimum
  +The `discovery.zen.minimum_master_nodes` sets the minimum
   number of master eligible nodes a node should "see" in order to operate
   within the cluster. Its recommended to set it to a higher value than 1
   when running more than 2 nodes in the cluster.
  
positive.code: [[unicast]]
  ===== Unicast
  
  The unicast discovery allows to perform the discovery when multicast is
  not enabled. It basically requires a list of hosts to use that will act
  as gossip routers. It provides the following settings with the
  `discovery.zen.ping.unicast` prefix:
  
negative.code: 
  This is the process where a node uses the discovery mechanisms to find
  other nodes. There is support for both multicast and unicast based
  discovery (these mechanisms can be used in conjunction as well).
  
  [float]
  [[multicast]]
  ===== Multicast
  
  Multicast ping discovery of other nodes is done by sending one or more
  multicast requests which existing nodes will receive and
  respond to. It provides the following settings with the
  `discovery.zen.ping.multicast` prefix:
  
  