Add embedded youtube links

[MartinMinkov]

SUPERSEDED by #427

see https://github.com/o1-labs/docs2/wiki/Markdown-Syntax#adding-videos-in-docs

Description

Instead of the old practice of using a manual thumbnail to specify a youtube link, we add the embedded element directly in our docs. This will improve UX and SEO.

Steps to add an embedded video

If you want to add a youtube video in our docs, we can directly add the iframe HTML in our docs! 😄 To do so, we simply need to do the following:

1. Go to the youtube video you would link to link
2. Click Share
   
3. Click Embed
   
4. Click Copy
   
5. Paste the HTML in your clipboard directly in the docs!

Things to note

You can resize the iframe by editing the HTML. For example, in the iframe element, there will be a height and width property. You can change these values to resize how big the iframe element is:

<iframe
  width="900"
  height="550"
  src="https://www.youtube.com/embed/GvwYJDzzI-g"
 ...
></iframe>

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
docs2	✅ Ready (Inspect)	Visit Preview	Jun 12, 2023 11:07pm

[barriebyron]

@MartinMinkov This method is excellent upgrade to our video embed workflow! Thank you for the quick solution
I see how you changed
https://docs2-git-feat-fix-youtube-links-minadocs.vercel.app/about-mina/what-are-zero-knowledge-proofs

[barriebyron]

so good, so fast, so awesome!