Lemme guess. You wanted to embed that video instead of just posting its link and gave up in utter frustration after pulling your hair out. Right? Been there, done that.
Here we go:
[youtube]https://youtu.be/JXoJM5FaDqY[/youtube]
The trick is to start the URL that's wrapped in the YouTube tags with
https://youtu.be/ and then add the video ID after the trailing slash. In this instance, the video ID is
JXoJM5FaDqY. So, the full URL to place between the YouTube tags is
https://youtu.be/JXoJM5FaDqY (just like it appears below the embedded video above).