added usage to readme
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@@ -10,3 +10,6 @@ Clone the repository by entering `git clone https://github.com/SemvdH/python-ray
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If you don't have pygame installed yet, you can install it using `pip install pygame`.
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Now you can run the raycaster by entering `python raycaster.py`
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## Usage
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The first version only has horizontal movement. You can move around using WASD and look left and right using the left and right arrow keys. You can press TAB for a debug mode, but that's only useful for developing things for the raycaster.
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