WIP: simplify code contributions by fully automating the dev setup with Gitpod

[nisarhassan12]

Fixes #78

This is how it looks:

You can give it a try on my fork of the repo via the following link:

https://gitpod.io/#https://github.com/nisarhassan12/Interactive-Book/

As I pointed out in https://github.com/CircuitVerse/Interactive-Book/issues/78#issuecomment-633609609 that styles were not showing up.

Many Thanks to @Kreyren he was able to fix this via prefixing the href value with {{ site.url }}:

<link rel="stylesheet" href="{{ "{{ site.url }}/assets/css/just-the-docs.css" | absolute_url }}">

There are still many things remaining i.e the links in the sidebar does not work so I'll make those changes soon.

[Kreyren]

FWIW I have a fix staged in https://gitpod.io#snapshot/d3a9516c-4be3-47b2-81dc-df4020ff4f57, but it's blocked by https://github.com/gitpod-io/gitpod/issues/1553

Investigating if we can implement this in nice way, worst case scenario is firefox in novnc atm that i want to avoid.