fixes after review

Author: julitafalcondusza

docs/templating/twig_function_reference/product_twig_functions.md

@@ -133,7 +133,7 @@ The `ibexa_is_pim_local` is a helper Twig function that enables changing the beh
 
 ### `ibexa_product_catalog_group_attributes`
 
-The `ibexa_product_catalog_group_attributes` filter groups product attributes (configured in `ibexa_product_catalog_group_attributes`).
+The `ibexa_product_catalog_group_attributes` filter groups product attributes based on the [attribute group]([[= user_doc =]]/pim/work_with_product_attributes/) they belong to.
 
 #### Example