SVG animation tutorials?

Question

SVG

There is a great desire to learn how to cool animate SVG images, but so far, unfortunately, I have not been able to find adequate tutorials that would be understandable to a beginner in vector graphics and its animation. Give materials on this issue, in Russian it would be generally ideal. Something like this https://www.youtube.com/watch?v=XBdbgD2BaEI , but in more detail. Maybe some kind of cycle, with, for example, such elements as the beginning of the animation at the moment the page scrolls to this element. But simplicity is welcome! For starters, how to correctly create simple lines in illustrator, import them into code, and then animate them a little. Thank you very much in advance!