add requirements to static_assert

Author: TylerMSFT

docs/c-language/static-assert-c.md

@@ -71,6 +71,10 @@ int main()
 |-------------|---------------------|
 |**`static_assert`**|\<assert.h>|
 
+[`/std:c11`](../build/reference/std-specify-language-standard-version.md) or later is required.
+
+Windows SDK 10.0.20348.0 (version 2104) or later. You can download the latest SDK from [Windows 10 SDK](https://developer.microsoft.com/windows/downloads/windows-10-sdk/). For more information, and instructions on how to install and use the SDK for C development, see [Install C11 and C17 support in Visual Studio](../overview/install-c17-support.md).
+
 ## See also
 
 [`_STATIC_ASSERT` Macro](../c-runtime-library/reference/static-assert-macro.md)\