I think a good approach would be to just not hide the markdown characters. I didn't create this but I'm tempted to try to extend it.
126 karma · joined August 23, 2017
Link to the extension which in turn links to the git repo: https://addons.mozilla.org/en-US/firefox/addon/delaywebpage/
1. https://addons.mozilla.org/en-US/firefox/addon/delaywebpage/ 2. https://github.com/OskarDamkjaer/FirefoxDelayWebpage
https://addons.mozilla.org/en-US/firefox/addon/delaywebpage/