news: update treasure hunt

Author: gerryd

content/news/2025-02-01-update-treasure-hunt.html

@@ -14,6 +14,10 @@
     Keep your eyes on our updates, stay determined, and don’t let a few missing signs stop you from cracking the code! Good luck, and see you at Infodesk K with the final answer!</p>
 </p>
 
+<p>
+Update 2025-02-02 15:30: the soundbite is available <a href="https://ftp.fau.de/fosdem/2025/treasurehunt/four.ogg">here</a>.
+</p>
+
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