Hello. Seems it has been over a year since I put any photos up 😳

I have been using marked.js as the markdowm interpreter for SplinterStats Season Report Card. You can find information about it here:

https://www.npmjs.com/package/marked
https://marked.js.org/demo

By double column post, I presume you are not talking about tables but rather having the post displayed in a newspaper-ish format that once one column is full flows through to the next? I'm not sure there is an easy way to achieve this using markdown 🤔 You would likely need to investigate how other people have done it in plug-ins for other markdown formatted platforms.

Alternatively, if you were making your own front-end website to view the posts, you could have the posts use HTML and render that directly 🤷