sdl2-compat: cmake: updated top-level note to follow SDL3 header inclusing changes.

SDL Commits
1 
From f30a0a7dbeddbe7a712d17ea839dc3d8d158e5a7 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 29 Nov 2022 08:55:40 +0300
Subject: [PATCH] cmake: updated top-level note to follow SDL3 header inclusing
 changes.

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 560044b..8f56174 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 # NOTE:  If you installed SDL3 at an unusual place and SDL3Config fails,
 #        you can define SDL3_INCLUDE_DIRS on the cmdline.  For example:
-#        cmake -DSDL3_INCLUDE_DIRS="/opt/SDL3/include;/opt/SDL3/include/SDL3"
+#        cmake -DSDL3_INCLUDE_DIRS=/opt/SDL3/include [other stuff ....]
 
 cmake_minimum_required(VERSION 3.0.0)
 project(sdl2_compat