arcade link updated

Arcade, a game development library, the previous link does not exist. So I updated it with the latest link.

README.md

@@ -693,7 +693,7 @@ Inspired by [awesome-php](https://github.com/ziadoz/awesome-php).
 
 *Awesome game development libraries.*
 
-* [Arcade](https://arcade.academy/index.html) - Arcade is a modern Python framework for crafting games with compelling graphics and sound.
+* [Arcade](https://api.arcade.academy/en/latest/) - Arcade is a modern Python framework for crafting games with compelling graphics and sound.
 * [Cocos2d](http://cocos2d.org/) - cocos2d is a framework for building 2D games, demos, and other graphical/interactive applications.
 * [Harfang3D](http://www.harfang3d.com) - Python framework for 3D, VR and game development.
 * [Panda3D](https://www.panda3d.org/) - 3D game engine developed by Disney.