Updated C6276

an -> a

Author: MugBergerFries

docs/code-quality/c6276.md

@@ -11,7 +11,7 @@ ms.assetid: 88f288da-da81-4d32-ab0f-be9d01a2606a
 
 > Cast between semantically different string types: char* to wchar_t\*. Use of invalid string can lead to undefined behavior.
 
-This warning indicates a potentially incorrect cast from an narrow character string (`char_t*`) to a wide character string (`wchar_t *`).
+This warning indicates a potentially incorrect cast from a narrow character string (`char_t*`) to a wide character string (`wchar_t *`).
 
 ## Remarks