Update verify_range_query_term docstring

Update verify_range_query_term docstring to clarify that query used is a parsed query.

hepdata/ext/opensearch/query_builder.py

@@ -88,7 +88,7 @@ def _quote_phrase(phrase):
     @staticmethod
     def verify_range_query_term(query):
         """
-            Verifies whether a query string contains a range-based query.
+            Verifies whether a parsed query string contains a range-based query.
             If it does, return either that search keyword,
             or the "default" keyword for default search ordering.