Add code example for CA1716 rule (#48956)

docs/fundamentals/code-analysis/quality-rules/ca1716.md

@@ -10,6 +10,8 @@ helpviewer_keywords:
 - CA1716
 author: gewarren
 ms.author: gewarren
+dev_langs:
+- CSharp
 ---
 # CA1716: Identifiers should not match keywords
 
@@ -43,6 +45,10 @@ Case-insensitive comparison is used for Visual Basic keywords, and case-sensitiv
 
 Select a name that does not appear in the list of keywords.
 
+## Example
+
+:::code language="csharp" source="snippets/csharp/all-rules/ca1716.cs" id="snippet1":::
+
 ## When to suppress warnings
 
 You can suppress a warning from this rule if you're sure that the identifier won't confuse users of the API, and that the library is usable in all available languages in .NET.

docs/fundamentals/code-analysis/quality-rules/snippets/csharp/all-rules/ca1716.cs

@@ -0,0 +1,13 @@
+namespace ca1716
+{
+    //<snippet1>
+    // This code violates the rule.
+    public class Class { }
+    public class Event { }
+    public class String { }
+    public class Namespace { }
+    public class Object { }
+    public class Public { }
+    public class Static { }
+    //</snippet1>
+}