comark/invalid-frontmatter · Write valid YAML frontmatter

Frontmatter that isn't valid YAML, on the line of the YAML error. Comark throws on it and renders nothing; lint-comark reports it and still checks the rest of the document.

Incorrect

---
title: Ducks: a census
---

# Ducks

lint-comark example.mdexample.md:2:13 comark/invalid-frontmatterThe frontmatter is not valid YAML: bad indentation of a mapping entry.Indent nested keys evenly, and quote any value that contains : or starts with *, &, !, [, or {.✖ 1 problem

Correct

---
title: "Ducks: a census"
---

# Ducks

lint-comark example.md✔ No problems