sdlweb: Updated for the latest SDL release (658cf)

https://github.com/libsdl-org/sdlweb/commit/658cf13a9b7300219b22b3470827fb7e92d4aa9f

From 658cf13a9b7300219b22b3470827fb7e92d4aa9f Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 8 Jan 2025 01:50:12 +0000
Subject: [PATCH] Updated for the latest SDL release

---
 include/header.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/header.inc.php b/include/header.inc.php
index 62a7390..7a9ee0b 100644
--- a/include/header.inc.php
+++ b/include/header.inc.php
@@ -1,6 +1,6 @@
 <div id="header">                
     <div id="download_hint" class="box">
         Get the current <strong>stable</strong> <a href="https://github.com/libsdl-org/SDL/releases/latest">SDL version 2.30.11</a><br />
-        Get the SDL 3.0 preview! <a href="https://github.com/libsdl-org/SDL/releases/tag/preview-3.1.6">SDL version 3.1.6</a><br />
+        Get the SDL 3.0 preview! <a href="https://github.com/libsdl-org/SDL/releases/tag/preview-3.1.8">SDL version 3.1.8</a><br />
     </div>
 </div>