Update codedex-update-december-2024.mdx

blogs/codedex-update-december-2024.mdx

@@ -48,7 +48,9 @@ Excited to announce that JAAVAAA Chapters 1-4 are HERE! Free for all users. If y
   <a href="https://www.codedex.io/java" style={{ all: "unset" }} target="_blank" and rel="noopener noreferrer"><Button variant="yellow">View Java Course</Button></a>
 </div>
 
-#### Mini Holiday Hackathon
+#### Hack Like It's 1999: Mini Holiday Hackathon
+
+![Mini Holiday Hackathon](https://i.imgur.com/IpLzLcm.gif)
 
 Another [#CodedexHackathon](https://x.com/search?q=codedexhackathon&src=typeahead_click&f=live) in the books! This time, it's our 48-hour Mini Holiday Hackathon! ❄️ 2,102 total hackers, 303 jaw-dropping submissions, 13 total hackathon events, and a $4k prize pool. The perfect way to end the year.