SDL: wikiheaders: Link to the SDL2 wiki in the preamble.

From 5f8b53820ac2dd2cd8b77640bc7d57dc0577642a Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Thu, 26 Jan 2023 10:19:58 -0500
Subject: [PATCH] wikiheaders: Link to the SDL2 wiki in the preamble.

Fixes #6568.
---
 .wikiheaders-options | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.wikiheaders-options b/.wikiheaders-options
index 277d4bbeab72..44db2799fc73 100644
--- a/.wikiheaders-options
+++ b/.wikiheaders-options
@@ -13,4 +13,4 @@ projecturl = https://libsdl.org/
 wikiurl = https://wiki.libsdl.org
 bugreporturl = https://github.com/libsdl-org/sdlwiki/issues/new
 warn_about_missing = 0
-wikipreamble = (This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)
+wikipreamble = (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/) is the current stable version!)