Replace marked

[spenserblack]

Some of the solutions have gotten a bit hacky by trying to force marked.js to work with this. It might be best to write a custom parser so that there's more control over the behavior.

Choices:

• custom parser
• https://www.npmjs.com/package/remark (or its dependencies?)
• https://www.npmjs.com/package/remarkable
• https://github.com/micromark/micromark