Add code example for CA2207 rule (#49060) (#49061)

Author: kurnakovv

docs/fundamentals/code-analysis/quality-rules/ca2207.md

@@ -10,6 +10,8 @@ helpviewer_keywords:
   - "InitializeValueTypeStaticFieldsInline"
 author: gewarren
 ms.author: gewarren
+dev_langs:
+- CSharp
 ---
 # CA2207: Initialize value type static fields inline
 
@@ -35,6 +37,10 @@ If all static data is initialized inline and no explicit static constructor is d
 
 To fix a violation of this rule initialize all static data when it is declared and remove the static constructor.
 
+## Example
+
+:::code language="csharp" source="snippets/csharp/all-rules/ca2207.cs" id="snippet1":::
+
 ## When to suppress warnings
 
 Do not suppress a warning from this rule.

docs/fundamentals/code-analysis/quality-rules/snippets/csharp/all-rules/ca2207.cs

@@ -0,0 +1,28 @@
+namespace ca2207
+{
+    //<snippet1>
+    // This struct violates the rule.
+    struct BadStruct
+    {
+        private static readonly int s_first;
+        private static readonly int s_second;
+
+        static BadStruct()
+        {
+            s_first = 1;
+            s_second = 2;
+        }
+
+        // ...
+    }
+
+    // This struct satisfies the rule.
+    struct GoodStruct
+    {
+        private static readonly int s_first = 1;
+        private static readonly int s_second = 2;
+
+        // ...
+    }
+    //</snippet1>
+}