Add PSN Checker main page image

Author: VisionTQ

_posts/2026-06-11-how-to-use-psn-checker.md

@@ -28,6 +28,8 @@ If you haven't made a PSNTools account yet, check out the guide on [how to creat
 
 Head over to the [PSN Checker page](https://www.psntools.com/psn/checker).
 
+![PSN Checker main page](/assets/psn-tools/psn-checker-main-page.png){: .w-100 .shadow .rounded-10 }
+
 ---
 
 ## Step 2: Enable Advanced Mode