remove double returns

docs/topics/search/searching.rst

@@ -255,7 +255,7 @@ support writing phrase queries by wrapping the phrase with double-quotes. In add
 add filters into the query using the colon syntax (``hello world published:yes``).
 
 These two features can be implemented using the ``parse_query_string`` utility function. This function takes a query string that a user
-typed and returns returns a query object and dictionary of filters:
+typed and returns a query object and dictionary of filters:
 
 For example: