Merge pull request #5473 from Rageking8/update-c2166-error-reference

Update C2166 error reference

Author: v-regandowner

docs/error-messages/compiler-errors-1/compiler-error-c2166.md

@@ -1,23 +1,26 @@
 ---
-description: "Learn more about: Compiler Error C2166"
 title: "Compiler Error C2166"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2166"
+ms.date: 06/29/2025
 f1_keywords: ["C2166"]
 helpviewer_keywords: ["C2166"]
-ms.assetid: 12789c3a-cc76-48bb-ae2e-64283e0964ed
 ---
 # Compiler Error C2166
 
-l-value specifies const object
+> l-value specifies const object
+
+## Remarks
 
 Code attempts to modify an item declared **`const`**.
 
-The following sample generates C2166:
+## Example
+
+The following example generates C2166:
 
 ```cpp
 // C2166.cpp
-int f();
-int main() {
-   ( (const int&) 1 ) = 5;   // C2166
+int main()
+{
+    ((const int&)1) = 5;   // C2166
 }
 ```