docs: remove video presentation

Although it presents the general concept, it's heavily outdated given various API changes and new features. Let me remove it for now, and wait until we have a new one.

Author: krzema12

docs/index.md

@@ -35,9 +35,3 @@ confidence.
 * integrates with [github-actions-typing](https://github.com/typesafegithub/github-actions-typing) to use typings
   provided by action authors
 * and more!
-
-## 🎥 Video presentation
-
-Here's a detailed presentation of the library by Piotr Krzemiński, along with simple demos:
-
-![type:video](https://www.youtube.com/embed/jrDQXqQicek)