Add missing line

Rageking8 · web-flow · commit d0e5e56d580d · 2024-03-08T18:54:05.000+08:00
diff --git a/docs/error-messages/compiler-errors-2/compiler-error-c2526.md b/docs/error-messages/compiler-errors-2/compiler-error-c2526.md
@@ -11,6 +11,8 @@ helpviewer_keywords: ["C2526"]
 
 A function defined with C linkage cannot return a user-defined type.
 
+The following sample generates C2526:
+
 ```cpp
 // C2526.cpp
 // compile with: /c
