[Feature] add parse Yaml Front Matter about martian

[easyplux]

i mean need a way to parse the YAML front matter

because in obsidian i usually have file like this

---
author: Easy
category: [blog]
tags: [github]
create_at: 2022-05-25 
---
# head1

## head2

so i want parse YAML header to object

now i solve this problems.

first i through yaml-front-matter package to parse my markdown head then use your package to trans markdown to block

thanks~

[EndBug]

Hey, thanks for opening the issue
Just a quick clarification: are you suggesting we add a way to parse the YAML front matter or just a way to extract the Markdown without having to parse the front matter first?
Because if you want us to just "ignore" the front matter and directly parse the Markdown it can definitely be done. Parsing the front matter could be done but I don't see the point in us doing it: we wouldn't have a way to properly convert it to Notion blocks, and it would just be better to let you parse it first.