variable update

Author: rachel-mack

source/whats-new.txt

@@ -44,7 +44,7 @@ and features:
 
    .. replacement:: atlas-query-operators
 
-      the `SearchOperator Interface API documentation <{+api+}/com/mongodb/client/model/search/SearchOperator.html>`__
+      the `SearchOperator Interface API documentation <{+core-api+}/com/mongodb/client/model/search/SearchOperator.html>`__
 
 .. _kotlin-sync-version-5.3: