Fix markdown linting issues - remove trailing whitespace

Co-authored-by: BillWagner <[email protected]>

Author: Copilot

docs/csharp/language-reference/compiler-messages/cs9036.md

@@ -2,9 +2,9 @@
 description: "Compiler Error CS9036"
 title: "Compiler Error CS9036"
 ms.date: 05/19/2025
-f1_keywords: 
+f1_keywords:
   - "CS9036"
-helpviewer_keywords: 
+helpviewer_keywords:
   - "CS9036"
 ---
 # Compiler Error CS9036
@@ -26,7 +26,7 @@ class C
 class Program
 {
     public required C C { get; set; }
-    
+
     static void Main()
     {
         var program = new Program()
@@ -51,7 +51,7 @@ class C
 class Program
 {
     public required C C { get; set; }
-    
+
     static void Main()
     {
         var program = new Program()