Accept markdown-it options from source file

Description

markdown({
  highlight() {}
})`
# hi
`

markdown.external('./foo.md', {
  highlight() {}
})

Contributor guide

Tech stack

javascriptnodejs

Domain

build systemtooling

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

JavaScriptBabel plugin concept

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

40

Research direction

Examine the plugin's source code (likely index.js) to understand how the markdown function is implemented. The feature requires modifying the plugin to accept markdown it options as a second argument from source files. Check the markdown it documentation for available options and refer to the existing implementation of the markdown function for guidance.