More user-friendly documentation

Hello there, I'm trying to introduce carbon-components-angular in my project, however my team is finding the documentation a bit unfriendly.

For example, I gave it a try to the Modal:

https://angular.carbondesignsystem.com/?path=/story/components-modal--documentation

there are `313` lines of code in the documentation and it's not very clear what one should do in order to get a simple modal working. After spending some time there, I still haven't managed to get it working because of some weird errors in my console. Probably I'm still missing something.

What I'm suggesting here would be a complete rebranding of the documentation, in order to make it more compact and easier for new user to understand.

For example:

https://valor-software.com/ngx-bootstrap/#/modals

https://material.angular.io/components/dialog/overview

Start with the Modal documentation entry point at angular.carbondesignsystem.com/?path=/story/components-modal--documentation, then compare its setup and usage guidance with the ngx-bootstrap and Angular Material modal documentation linked in the issue. Done means the documentation is substantially more compact and clearly explains how a new user can get a simple modal working.

Written by the indexing model from the issue text.