Add C7688 error reference to TOC

Author: Rageking8

docs/error-messages/compiler-errors-2/compiler-error-c7688.md

@@ -13,7 +13,7 @@ helpviewer_keywords: ["C7688"]
 
 OpenMP restricts expressions in `#pragma omp atomic` constructs to scalar type.
 
-Compiler error C7688 is new in Visual Studio 2022 version 17.4. In previous compiler versions, the compiler would emit error [C3048](./compiler-error-c3048.md).
+Compiler error C7688 is new in Visual Studio 2022 version 17.4. In previous compiler versions, the compiler would emit error [C3048](compiler-error-c3048.md).
 
 ## Example
 

docs/error-messages/toc.yml

@@ -3167,6 +3167,8 @@ items:
           href: compiler-errors-2/compiler-error-c7553.md
         - name: Compiler error C7626
           href: compiler-warnings/c5208.md
+        - name: Compiler error C7688
+          href: compiler-errors-2/compiler-error-c7688.md
 - name: Compiler warnings C4000 through C5999
   expanded: false
   items: