Copyright Question Can I add Board editor in my website from Lichess?

I have to make my website for educational purpose Can I add Board editor in my website from Lichess

Lichess is open source no COPYRIGHT

lichess.org/contact#help-authorize

> You are welcome to use Lichess for your activity, even commercial.

> You can show it in your videos, and you can print screenshots of Lichess in your books.

> Credit is appreciated but not required.

#2 That's definitely not a true statement: github.com/ornicar/lila/blob/master/COPYING.md

Lichess is free/libre open source software. You can download, read, use and modify every bit of source code.
lichess.org/source !
Happy Coding!