Incorrect URL in installation steps

[jprjr]

makeRetro/README.md

Lines 52 to 59 in 67b210b

	```bash
	# Clone the repository
	git clone https://github.com/yourusername/makeRetro.git
	cd makeRetro
	# Run the setup script as root
	sudo ./setup-retro-mac.sh
	```

The README has a URL with yourusername instead of amcchord