SDL: Aded a patch note for relative mouse mode over RDP

From 2e9821423a237a1206e3c09020778faacfe430be Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 29 Nov 2021 20:20:07 -0800
Subject: [PATCH] Aded a patch note for relative mouse mode over RDP

---
 WhatsNew.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/WhatsNew.txt b/WhatsNew.txt
index 71997e133d..88ab5a3dbb 100644
--- a/WhatsNew.txt
+++ b/WhatsNew.txt
@@ -25,6 +25,7 @@ General:
 * SDL's hidapi implementation is now available as a public API in SDL_hidapi.h
 
 Windows:
+* Improved relative mouse motion over Windows Remote Desktop
 * Added the hint SDL_HINT_IME_SHOW_UI to show native UI components instead of hiding them (defaults off)
 
 Windows/UWP: