wikiheaders: Link to the SDL3 wiki in the preamble. Reference Issue #6568.
diff --git a/.wikiheaders-options b/.wikiheaders-options
index f6b64fd..85f4f30 100644
--- a/.wikiheaders-options
+++ b/.wikiheaders-options
@@ -13,4 +13,4 @@ projecturl = https://libsdl.org/
wikiurl = https://wiki.libsdl.org/SDL2
bugreporturl = https://github.com/libsdl-org/sdlwiki/issues/new
warn_about_missing = 0
-wikipreamble = (This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)
+wikipreamble = (This is the legacy documentation for stable SDL2, the current stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current development version.)