When EDITING a txti (txti.es/*/edit) in txti.es you should be able to preview your changes (a toggle preview button appears)
After installing, whenever you're editing a txti you will be able to see a "Toggle Preview" button. It will toggle between a preview of what your txti would look like if you hit "SAVE".
I made this after being very confused with all the different Markdown "variants", like github flavoured markdown.
It fetches an external library for parsing markdown that it's called "showdown". In tampermonkey, the code is: @require https://cdnjs.cloudflare.com/ajax/libs/showdown/1.3.0/showdown.min.js
The script is pretty straight-foward. No malicius code or extra bloatware was included.
