Embedding a YouTube Video

You can also embed YouTube videos directly into your lessons. The video is automatically displayed at the top of the lesson because it is defined in the frontmatter.

like this:

video:
  youtube: dQw4w9WgXcQ

You get the YouTube video ID from the URL, e.g. for https://www.youtube.com/watch?v=dQw4w9WgXcQ the ID is dQw4w9WgXcQ.