Feature request: citations like pandoc --citeproc

This is a really great plugin. I love it.

I was hoping it would be able to replace my note-taking workflow which involves writing in pandoc markdown.
When editing pandoc markdown files, it sure would be nice to have the ability to use citations from a biblatex file, so that when notes become papers it is easy to organize a bibliography.

Like say I'm editing my file `myfile.md`, which is

```markdown
---
title: My Title
bibliography: myfile.bib
reference-section-title: References
---

# Heading
Take a look at this citation: @blachman68.
```
and that I have a file `myfile.bib` which is a biblatex file with an entry whose key is `blachman68`, then running pandoc like
`pandoc --citeproc log.md -o log.html` I get an HTML file with citations, like this:

> ### My Title
> Take a look at this citation: Blachman (1968).
>
> #### References
> Blachman, N. 1968. “The Amount of Information That y Gives about x.” _IEEE Transactions on Information Theory_ 14 (1): 27–31.

I wonder whether there is an easy way to integrate this into the plugin. Would it be possible to get it to behave like that?