How to: markdown viewer
and there are *two* editors

![copyparty-md-read-fs8](https://user-images.githubusercontent.com/241032/115978057-66419080-a57d-11eb-8539-d2be843991aa.png)

there is a built-in extension for inline clickable thumbnails;
* enable it by adding `
` somewhere in the doc
* add thumbnails with `!th[l](your.jpg)` where `l` means left-align (`r` = right-align)
* a single line with `---` clears the float / inlining
* in the case of README.md being displayed below a file listing, thumbnails will open in the gallery viewer

other notes,
* the document preview has a max-width which is the same as an A4 paper when printed