Add SEO image link to game development guide

Added SEO image link for the game development guide.

Author: sonnynomnom

blogs/2025/how-to-get-started-with-game-development.mdx

@@ -2,7 +2,7 @@
 title: "How to Get Started with Game Development (Beginner's Guide 2025)"
 description: "Ellie from Codédex shows you how to start building games with the help of courses, project tutorials, and more using game engines and frameworks."
 author: Ellie Popoca
-seoImageLink: 
+seoImageLink: https://blah.txt
 dateCreated: 2025-10-28
 published: false
 tags: