R.1: Fix finally link

Author: WPMGPRoSToTeMa

CppCoreGuidelines.md

@@ -8682,7 +8682,7 @@ What is `Port`? A handy wrapper that encapsulates the resource:
 
 ##### Note
 
-Where a resource is "ill-behaved" in that it isn't represented as a class with a destructor, wrap it in a class or use [`finally`](#S-gsl)
+Where a resource is "ill-behaved" in that it isn't represented as a class with a destructor, wrap it in a class or use [`finally`](#Re-finally)
 
 **See also**: [RAII](#Rr-raii).