Create documentation outlining how lookyloo works for different use cases

[quinnnorton]

What is changing?

Introducing people to Looklyloo with a few example use cases:

1. Investigating malicious site activity
2. Looking for tracking/ad infrastructure
3. Investing for any kind of unified infrastructure over disparate sites
4. Educating students on how the web works, "under the hood"
5. Tracking the behavior and maintenance of a complex website

How will this impact users?

Context

Additional information

[Rafiot]

For reference this is what we have now: https://www.lookyloo.eu/docs/main/usage.html and https://www.lookyloo.eu/docs/main/use-cases.html

[stale]

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