Feature: add escape for markdown parsing

[kellymears]

• I've read the guidelines for Contributing to Roots Projects
• This request isn't a duplicate of an existing request
• This is not a personal support request that should be posted on the Roots Discourse community

Summary

Super low priority.

It is not currently possible to escape markdown parsing for docs pages.

The only issue this causes right now is trying to describe the markdown parsing in the dev docs.

Motivation

It would be nice to be able to escape markdown parsing.

Maybe something like:

{no-parse}
[Some doc page](docs:config/doc-page)
{end-no-parse}

But, I haven't given it much thought.

Additional context

Current rules:

• Docs links:

[Some doc page](docs:config/doc-page) => 
[Some doc page](https://github.com/roots/bud/tree/stable/docs/config/doc-page)

• Pkg links:

[Some repo path](url:packages/@roots/bud/src) => 
[Some repo path](https://github.com/roots/bud/tree/stable/packages/@roots/bud/src)

• surrounding a repo pkg name with backticks becomes a link to the package root

`@roots/bud` => [@roots/bud](https://github.com/roots/bud/tree/stable/packages/@roots/bud)

• [badge](npm:@roots/bud) becomes a badge
• @user/repo becomes a link to whatever github repo

All of this is in https://github.com/roots/bud/tree/stable/dev/docs/gen/remark.ts. Some of it is powered by remark; the more specific stuff is just regex parsing.

[kellymears]

https://github.com/Nevenall/remark-containers

[kellymears]

This issue is closed by #148 now that we've moved on to using docusaurus.