moved the entries up one folder, added the folder to the keywords

games/monogame.md

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+# MonoGame
+
+_Open Source implementation of the Microsoft XNA 4 Framework._
+
+- Home: http://www.monogame.net/
+- Media: https://en.wikipedia.org/wiki/MonoGame
+- State: mature
+- Download: http://www.monogame.net/downloads/
+- Keywords: framework
+- Code repository: https://github.com/MonoGame/MonoGame.git
+- Code language: C#
+- Code license: MPL, MIT
+
+## Building
+
+