sdlweb: Added the GDC presentation video on GDCVault

From eb70fa9e14b974e6f11e35eac4c070743f84dd71 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Tue, 18 Apr 2023 22:04:14 +0000
Subject: [PATCH] Added the GDC presentation video on GDCVault

---
 gdc2023/index.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gdc2023/index.php b/gdc2023/index.php
index 12771d8..11259ee 100644
--- a/gdc2023/index.php
+++ b/gdc2023/index.php
@@ -13,6 +13,7 @@
             <div id="content">
             <p><h1><a href="https://schedule.gdconf.com/session/open-source-game-development-summit-simple-directmedia-layer-past-present-and-future/892854">SDL at Game Developers Conference 2023</a></h1></p>
             <p><ul>
+	      <li><a href="https://gdcvault.com/play/1029269/Open-Source-Game-Development-Summit">Presentation Video</a></li>
 	      <li><a href="GDC23_Presentation_SDL.pptx">Presentation Slides</a></li>
               <li><a href="https://github.com/libsdl-org/SDL">SDL 3.0 Source Code</a></li>
               <li><a href="https://github.com/libsdl-org/SDL/tree/main/docs/README-migration.md">SDL 3.0 Transition Guide</a></li>