game entry file names changed to canonical version

games/candy_box_2.md

@@ -0,0 +1,18 @@
+# Candy Box 2
+
+_Online text-based role-playing game featuring ASCII art._
+
+- Home: https://candybox2.wordpress.com/
+- Media: https://en.wikipedia.org/wiki/Candy_Box!
+- State: mature, inactive since 2013
+- Play: https://candybox2.github.io/
+- Platform: Browser
+- Keywords: role playing, asciiart, text-based
+- Code repository: https://github.com/candybox2/candybox2.github.io.git
+- Code language: Typescript, JavaScript
+- Code license: GPL-3.0
+
+See also [Candy Box](https://github.com/candybox2/candybox)
+
+## Building
+