Getting more info than just title and keywords

[oximer]

I want to enrich my nodes with some extract information that are on the markdown body

---
title: "Sweet Pandas Eating Sweets"
date: "2017-08-10"
---

#Starting
Pandas are really sweet.

##Topic 2
Here's a video of a panda eating sweets.

It's possible to extract Starting and Topic2 headers and add them into my GraphQL so that I can query it?

[DanielRuf]

gatsbyjs/gatsby#6230 is probably helpful.