note an incompatibility (#4958)

* note an incompatibility

* fix flag case

* make bold to match

---------

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

Author: TylerMSFT

docs/build/reference/zw-windows-runtime-compilation.md

@@ -1,16 +1,16 @@
 ---
 description: "Learn more about: /ZW (Windows Runtime Compilation)"
 title: "/ZW (Windows Runtime Compilation)"
-ms.date: "04/08/2019"
+ms.date: 06/22/2023
 f1_keywords: ["VC.Project.VCCLCompilerTool.CompileAsWinRT", "/zw"]
 helpviewer_keywords: ["/ZW", "-ZW compiler option", "/ZW compiler option", "-ZW", "Windows Runtime compiler option"]
-ms.assetid: 0fe362b0-9526-498b-96e0-00d7a965a248
 ---
-# /ZW (Windows Runtime Compilation)
+# `/ZW` (Windows Runtime Compilation)
 
 Compiles source code to support Microsoft C++ component extensions C++/CX for the creation of Universal Windows Platform (UWP) apps.
 
-When you use **/ZW** to compile, always specify **/EHsc** as well.
+When you use **`/ZW`** to compile, always specify **`/EHsc`** as well.\
+**`/ZW`** isn't compatible with **`/std:c++20`**.
 
 ## Syntax
 
@@ -21,24 +21,24 @@ When you use **/ZW** to compile, always specify **/EHsc** as well.
 
 ## Arguments
 
-**nostdlib**<br/>
-Indicates that Platform.winmd, Windows.Foundation.winmd, and other default Windows metadata (.winmd) files are not automatically included in the compilation. Instead, you must use the [/FU (Name Forced #using File)](fu-name-forced-hash-using-file.md) compiler option to explicitly specify Windows metadata files.
+**`nostdlib`**\
+Indicates that `Platform.winmd`, `Windows.Foundation.winmd`, and other default Windows metadata (`.winmd`) files aren't automatically included in the compilation. Instead, you must use the [`/FU` (Name Forced #using File)](fu-name-forced-hash-using-file.md) compiler option to explicitly specify Windows metadata files.
 
 ## Remarks
 
-When you specify the **/ZW** option, the compiler supports these features:
+When you specify the **`/ZW`** option, the compiler supports these features:
 
 - The required metadata files, namespaces, data types, and functions that your app requires to execute in the Windows Runtime.
 
 - Automatic reference-counting of Windows Runtime objects, and automatic discarding of an object when its reference count goes to zero.
 
-Because the incremental linker does not support the Windows metadata included in .obj files by using the **/ZW** option, the deprecated [/Gm (Enable Minimal Rebuild)](gm-enable-minimal-rebuild.md) option is incompatible with **/ZW**.
+Because the incremental linker doesn't support the Windows metadata included in .obj files by using the **`/ZW`** option, the deprecated [/Gm (Enable Minimal Rebuild)](gm-enable-minimal-rebuild.md) option is incompatible with **`/ZW`**.
 
 For more information, see [Visual C++ Language Reference](../../cppcx/visual-c-language-reference-c-cx.md).
 
 ## Requirements
 
 ## See also
 
-[MSVC Compiler Options](compiler-options.md)<br/>
+[MSVC Compiler Options](compiler-options.md)\
 [MSVC Compiler Command-Line Syntax](compiler-command-line-syntax.md)