Fix (updated README and fixed dependency vulnerabilities)

[mapachurro]

Updated README to include more context, updated the 'Create new docs' flow so it doesn't refer to forking, ran npm audit fix to start to address vulnerabilities.

Pull request checklist

Make sure that:

• You've read the contribution guidelines of this repository (if any)
• You've previewed your changes locally.

Describe the change

• This template / repo is starting to have lots of dependency security issues. I ran 'npm audit fix', which fixed 3 of them automatically, but there are a lot more 😥
• The README on the repo was minimal to the point of being confusing. Non-technical people in ConsenSys are being pointed to the repo as a resource, and when they get there, they don't know what's going on. I adapted a lot of content from the 'Create new docs' flow to explain it a bit more.
• Additionally, the 'create new docs' flow referred to forking the repo, which is actually a completely different flow than what we want users to be doing. So I changed that, as well.

Issue fixed

N/A

Impacted parts

The README, the Create new docs flow, and the package.json.

For content changes:

• Documentation content
• Documentation page organization

For tool changes:

• Docusaurus build changes
• Package dependencies
• GitHub CI

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• You've fixed any issues raised by the tests.
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Name	Status	Preview	Comments	Updated (UTC)
docs-template	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 1, 2023 1:22pm

[github-actions]

🎉 This PR is included in version 1.18.4 🎉

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