message: Document autoIndexId as deprecated
diff: @@ -33,6 +33,10 @@ class MONGOCXX_API create_collection {
  ///
  /// Specify false to disable the automatic creation of an index on the _id field.
  ///
  + /// @deprecated
  + /// This method is deprecated. Server versions 3.4 and above no longer support the
  + /// "autoIndexId" option.
  + ///
  /// @note For replica sets, all collections must have autoIndexId set to true.
  ///
  /// @param auto_index_id
  