Update retroarch.md

Author: ivan-hc

apps/retroarch.md

@@ -2,7 +2,7 @@
 
  Frontend for emulators, game engines and media players.
 
- SITE: https://github.com/hizzlekizzle/RetroArch-AppImage
+ SITE: https://retroarch.com
 
  | [Applications](https://portable-linux-apps.github.io/apps.html) | [Home](https://portable-linux-apps.github.io)
  | --- | --- |