Merge pull request #3052 from nschonni/fix--MD023/heading-start-left/header-start-left

fix: MD023/heading-start-left/header-start-left

Author: ktoliver

docs/ide/reference/convert-foreach-linq.md

@@ -41,7 +41,7 @@ This refactoring applies to:
 
    ![LINQ call form result](media/convert-foreach-to-LINQ-callform-result.png)
 
- ### Sample Code
+### Sample Code
 
 ```csharp
 using System.Collections.Generic;