Fix link to EXCEPTION_POINTERS (#3861)

Author: AustinWise

xml/System.Runtime.InteropServices/Marshal.xml

@@ -3506,7 +3506,7 @@
       <Parameters />
       <Docs>
         <summary>Retrieves a computer-independent description of an exception, and information about the state that existed for the thread when the exception occurred.</summary>
-        <returns>A pointer to an <see href="https://docs.microsoft.com/windows/desktop/api/winnt/ns-winnt-_exception_pointers">EXCEPTION_POINTERS</see> structure.</returns>
+        <returns>A pointer to an <see href="https://docs.microsoft.com/windows/win32/api/winnt/ns-winnt-exception_pointers">EXCEPTION_POINTERS</see> structure.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[