README.md - Add Table Of Contents+Guide for Docker

[benjisho]

Background

1. There was no Table of Contents so I made one for reading the documentation more optimally
2. There was no link that redirects on how to install Docker Engine - for people who just starting with Docker.

Changes

1. Added a Table of Contents for easy navigation through the README.md.
2. Included a new "Installing Docker" section with a link to the Official Docker Engine Installation Guide.

Documentation

For example the "Features" topic is written in the following way: In the Table of contents: [🚀 Features](#features)

And where the actual topic is located i added a link with the variable: ## <a name="features"></a>🚀 Features

Test Plan

- no tests needed, just document edits.

PR Quality Checklist

• [v] My pull request is atomic and focuses on a single change.
• [ ] I have thoroughly tested my changes with multiple different prompts. - no tests needed, just document edits.
• [ ] I have considered potential risks and mitigations for my changes. - no risk, just document edits.
• [v] I have documented my changes clearly and comprehensively.
• [v] I have not snuck in any "extra" small tweaks changes

[github-actions[bot]]

This pull request has conflicts with the base branch, please resolve those so we can evaluate the pull request.

[richbeales]

We have now restructed the README into /docs (it was getting too long). Please resolve the conflicts/add your docker instructions into the right (new) place.

[benjisho]

We have now restructed the README into /docs (it was getting too long). Please resolve the conflicts/add your docker instructions into the right (new) place.

Done

[Pwuts]

This has already been fixed. Thanks for submitting though!