4.4 Common Markdown Extensions ↑
4.4.11 Embedded Audio and Video
The normal Markdown image syntax can also be used to embed a video or an audio file.
Following is an example of how this would look.
Note that there is no alt text, and the video file must have an extension of .mov or .mp4.
The resulting HTML will look something like the following.
<video controls>
<source src="my_video.mov" type="video/mp4" />
</video>
Something comparable will be done with audio files having an .mp3 extension.