[HANDS-ON BUG] Embed youtube video in github but show details of iframe tag

[ShawnSiao]

Describe the bug
Maybe we can't embed youtube videos in github, i found this way of writing in several documents. Do we need to change it to a web page jump?
What do you think? Can i fix it by this way?

To Reproduce
https://github.com/huggingface/agents-course/blob/main/units/en/unit1/tutorial.mdx

Screenshots

[ShawnSiao]

@burtenshaw Hi, do you think we need to fix this?

I tested several methods to try to solve this problem. In the end, I could only modify it by showing the video cover image and clicking the image to jump to view the video to provide a better reading experience. I wonder what you think?
Maybe you have a better way to solve this problem.