Docs: Fix typo in has-child-query docs
@@ -107,7 +107,7 @@ is not mapped.
Parent documents can't be sorted by fields in matching child documents via the
regular sort options. If you need to sort parent document by field in the child
-documents then you can should use the `function_score` query and then just sort
+documents then you should use the `function_score` query and then just sort
by `_score`.
Sorting blogs by child documents' `click_count` field:
