[Couchdb Wiki] Update of "TagsInsideDocuments" by AlexWhite

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The following page has been changed by AlexWhite:
http://wiki.apache.org/couchdb/TagsInsideDocuments

The comment on the change is:
added note to use group=true to retrieve counts by tag

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  }
  }}}
  
+ Note: when retrieving data from this view, by results will be reduce to a single row.  To get counts reduced by tag, use the ?group=true option when retrieving data from the view, see HttpViewApi.
+ 
  '''Retrieve documents by a specific tag:'''
  
  ''map''