SDL: Fixed SDL_GetWindowWMInfo() code example

SDL Commits
1 
From e0d0d140b224151ae363c9aaaa7c1cdc264c9a4e Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Thu, 16 Nov 2023 09:55:06 -0800
Subject: [PATCH] Fixed SDL_GetWindowWMInfo() code example

---
 docs/README-migration.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/README-migration.md b/docs/README-migration.md
index a93074cd67c6..f34119252a8a 100644
--- a/docs/README-migration.md
+++ b/docs/README-migration.md
@@ -1175,7 +1175,7 @@ The information previously available in SDL_GetWindowWMInfo() is now available a
 ```c
     HWND hwnd = NULL;
     SDL_SysWMinfo info;
-    SDL_VERSION(&info);
+    SDL_VERSION(&info.version);
     if (SDL_GetWindowWMInfo(window, &info) && info.subsystem == SDL_SYSWM_WINDOWS) {
         hwnd = info.info.win.window;
     }