SDL: Corrected migration documentation for SDL_GetDisplayDPI()

From 7a9f99cff34c3c170736be702cc199ce214df642 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 27 Mar 2024 18:27:57 -0700
Subject: [PATCH] Corrected migration documentation for SDL_GetDisplayDPI()

Fixes https://github.com/libsdl-org/SDL/issues/9386
---
 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 ca28e641e36f4..a531c93965e24 100644
--- a/docs/README-migration.md
+++ b/docs/README-migration.md
@@ -1735,7 +1735,7 @@ The following functions have been renamed:
 
 The following functions have been removed:
 * SDL_GetClosestFullscreenDisplayMode()
-* SDL_GetDisplayDPI() - not reliable across platforms, approximately replaced by multiplying `display_scale` in the structure returned by SDL_GetDesktopDisplayMode() times 160 on iPhone and Android, and 96 on other platforms.
+* SDL_GetDisplayDPI() - not reliable across platforms, approximately replaced by multiplying SDL_GetWindowDisplayScale() times 160 on iPhone and Android, and 96 on other platforms.
 * SDL_GetDisplayMode()
 * SDL_GetNumDisplayModes() - replaced with SDL_GetFullscreenDisplayModes()
 * SDL_GetNumVideoDisplays() - replaced with SDL_GetDisplays()