Merge pull request #1127 from gusthoff/content/advanced_ada/new_content/records/variant_parts/20241013

Adding section on variant parts

Author: gusthoff

content/courses/advanced-ada/parts/data_types/aggregates.rst

@@ -526,6 +526,8 @@ This code compiles because :ada:`<>` uses the appropriate default value of each
 component.
 
 
+.. _Adv_Ada_Aggregates_Record_Discriminants:
+
 Record discriminants
 ~~~~~~~~~~~~~~~~~~~~