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

games/the_butterfly_effect.md

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+# The Butterfly Effect
+
+_Realistic physics simulations._
+
+- Home: http://the-butterfly-effect.org/, https://sourceforge.net/projects/tbe/
+- State: beta 
+- Download: http://the-butterfly-effect.org/#download, https://github.com/the-butterfly-effect/tbe/releases
+- Platform: Windows, Linux, macOS
+- Keywords: simulation, physics, simulation
+- Code repository: https://github.com/the-butterfly-effect/tbe.git
+- Code language: C++
+- Code license: GPL-2.0
+- Code dependencies: Qt, Box2D
+
+## Building
+
+- Build system: CMake