Modified the file to remove the old method of downloading the conatiner and added the singularity website for ease of acccess.

	modified:   part3/simulating_detectors.md

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	modified:   src/docs/part3/simulating_detectors.md

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	modified:   part2/adding_detectors.md
	new file:   part3/simulating_detectors.md
	new file:   part4/sensitive_detector.md

	modified:   getting-started/quickstart.mdx

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	modified:   part1/simple_detector.md

	new file:   overview.md
	renamed:    gettingstartedold.mdx -> usage/gettingstartedold.mdx
	new file:   usage/introduction.mdx

	modified:   ../config/sidebar.yml
	deleted:    hackathon/1-tasks.md
	modified:   index.mdx
	deleted:    introduction.mdx
	deleted:    part1.md
	deleted:    part1/overview.md
	modified:   part1/simple_detector.md
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	deleted:    tools.md

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	modified:   index.mdx
	modified:   links.md
	modified:   part1/simple_detector.md

	modified:   links.md

	modified:   part1/overview.md

	new file:   tools.md

	modified:   getting-started/eic_container.md
	modified:   getting-started/environment.md
	deleted:    getting-started/quickstart.md
	new file:   getting-started/quickstart.mdx
	modified:   hackathon.md
	modified:   index.mdx
	new file:   links.md
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