renamed games folder to entries folder (also contained frameworks, libraries, ...) and added to the backlog

entries/celestron.md

@@ -0,0 +1,15 @@
+# Celestron
+
+_Top-down space shooter in the legacy of Chromium BSU._
+
+- Home: https://sourceforge.net/projects/celestron/
+- State: beta, inactive since 2012 
+- Download: https://sourceforge.net/projects/celestron/files/
+- Keywords: action, shooter, top-down
+- Code repository: https://git.code.sf.net/p/celestron/code, https://gitlab.com/osgames/celestron.git (+)
+- Code language: Python
+- Code license: GPL-3.0
+- Code dependencies: numpy, pygame
+
+## Building
+