Update README.md

README.md

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 # A Pair Of Squares
-A platformer with a twist - one set of controls for two characters!
+A platformer with a twist - one set of controls for two characters!
+
+### Controls
+- **Arrow keys**: Moving characters, navigating menu
+- **Space**: Jump, selecting items in menu
+
+Pink always moves in the opposite direction to Blue, just to add to the challenge :)
+
+### Tools
+- Written in C++ using SDL.
+- Aseprite used for artwork.
+- LMMS used for music.
+- [JFXR](https://jfxr.frozenfractal.com/) used for sound effects.
+- Tiled used for level maps.