SDL: Added a note to direct people to README-migration.md

From 9593c8b29dfa9525853675a52f589a877481d92b Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 27 Nov 2022 10:07:44 -0800
Subject: [PATCH] Added a note to direct people to README-migration.md

---
 WhatsNew.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/WhatsNew.txt b/WhatsNew.txt
index 77e3f288ef9a..010524f3f03c 100644
--- a/WhatsNew.txt
+++ b/WhatsNew.txt
@@ -11,7 +11,7 @@ General:
 * SDL_GetWindowWMInfo() returns a standard int result code instead of SDL_bool, and takes SDL_SYSWM_CURRENT_VERSION as a new third parameter
 * The preprocessor symbol __MACOSX__ has been renamed __MACOS__
 * The preprocessor symbol __IPHONEOS__ has been renamed __IOS__
-* Removed the following functions from the API:
+* Removed the following functions from the API, see docs/README-migration.md for details:
 	* SDL_CalculateGammaRamp()
 	* SDL_GetRevisionNumber()
 	* SDL_GetWindowBrightness()
@@ -19,7 +19,7 @@ General:
 	* SDL_RWFromFP()
 	* SDL_SetWindowBrightness()
 	* SDL_SetWindowGammaRamp()
-* Removed the following hints from the API:
+* Removed the following hints from the API, see docs/README-migration.md for details:
 	* SDL_HINT_IDLE_TIMER_DISABLED
 	* SDL_HINT_VIDEO_X11_FORCE_EGL
 	* SDL_HINT_VIDEO_X11_XINERAMA