anchor.diff:  
   The field capabilities API allows to retrieve the capabilities of fields among multiple indices.
   
  -The field capabilities api by default executes on all indices:
  +The field capabilities API by default executes on all indices:
   
   [source,js]
   --------------------------------------------------
  
positive.code: --------------------------------------------------
  // CONSOLE
  
  ... but the request can also be restricted to specific indices:
  
  [source,js]
  --------------------------------------------------
  
negative.code: [float]
  === Field Capabilities
  
  The field capabilities API returns the following information per field:
  
  [horizontal]
  `searchable`::
  