Rule Change: Add frontmatterTitle option to heading-increment

[xbinaryx]

What rule do you want to change?

heading-increment

What change do you want to make?

Generate more warnings

How do you think the change should be implemented?

A new option

Example code

---
title: "level 1"
---

### level 3

What does the rule currently do for this code?

No error is reported.

What will the rule do after it's changed?

The rule will treat the front matter title as a level 1 heading, so it will report an error for skipping heading levels (jumping from 1 to 3).

Participation

• I am willing to submit a pull request to implement this change.

Additional comments

See MD001

No response

[lumirlumir]

Sounds good to me 👍

Would like to hear a few more opinions from @eslint/eslint-team before moving forward.

---

markdown/src/rules/no-multiple-h1.js

Line 69 in 6b43333

frontmatterTitle: {

Maybe the option name frontmatterTitle would be a good choice, since the no-multiple-h1 rule already uses that name.