anchor.diff:  
   [[glossary-cold-tier]] cold tier::
   // tag::cold-tier-def[]
  -A <<glossary-data-tier, data tier>> that contains nodes that hold time series data 
  +A <<glossary-data-tier, data tier>> that contains nodes that hold time series data
   that is accessed occasionally and not normally updated.
   // end::cold-tier-def[]
   
  
positive.code: // end::routing-def[]
  --
  
  [[glossary-searchable-snapshot]] searchable snapshot ::
  // tag::searchable-snapshot-def[]
  A <<glossary-snapshot, snapshot>> of an index that has been mounted as a
  
negative.code: 
  [[glossary-system-index]] system index ::
  // tag::system-index-def[]
  An index that contains configuration information or other data used internally by the system,
  such as the `.security` index.
  The name of a system index is always prefixed with a dot.
  You should not directly access or modify system indices.
  // end::system-index-def[]
  