Fix bad reference

Author: tkruse

CppCoreGuidelines.md

@@ -3337,7 +3337,7 @@ There is not a choice when a set of functions are used to do a semantically equi
 
 ##### See also
 
-[Default arguments for virtual functions](#Rf-virtual-default-arg}
+[Default arguments for virtual functions](#Rh-virtual-default-arg)
 
 ##### Enforcement