You may also use asciinema.org to record replayable tutorials. For adding notes, you can use a markdown file with the asciicast (the file format of asciinema) e

You may also use asciinema.org to record replayable tutorials. For adding notes, you can use a markdown file with the asciicast (the file format of asciinema) embedded. Edit: But I do not know of an integrated, comfortable way to combine asciinema and markdown. Enhancing the asciicast format with (markdown) comments and make the asciicast players display them would be nice.