I've worked on this a bit and managed to work it out. Definitely my fault here.

One thing I'm still trying to work out is if there are any tools for configuring table styles. It'd be good to be able to set a default table style rather than the one hardcoded into pandoc.
Is learning how to write a filter the only way to to this?

On Thursday, 12 October 2017 21:10:35 UTC+1, John MacFarlane wrote:
This method works just fine for me (using the last release and also
the dev version).

+++ Dylan Bartlett [Oct 12 17 12:51 ]:
>   Hi All,
>   I've been trying to add headers and footers to a document written in
>   markdown using some notes I got from
>   stackexchange. https://tex.stackexchange.com/questions/139139/adding-he
>   aders-and-footers-using-pandoc
>   It looks like you used to be able to add headers and footers to a
>   document by using YAML includes like this:
>---
>title: Test
>author: Author Name
>header-includes:
>    - \usepackage{fancyhdr}
>    - \pagestyle{fancy}
>    - \fancyhead[CO,CE]{This is fancy}
>    - \fancyfoot[CO,CE]{So is this}
>    - \fancyfoot[LE,RO]{\thepage}
>---
>
>   But apparently this has stopped working based on the comments I've
>   read. Is there something else I need to do? Do i need to start messing
>   with the default Tex template?
>   Thanks in advance for the help
>
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