JQ plugin Text-Rotator-With-Typing-Effect-jQuery-Typer https://www.jqueryscript.net/rotator/Text-Rotator-With-Typing-Effect-jQuery-Typer.html
scroll revel
conpolsory file
<script src="https://unpkg.com/scrollreveal"></script><script src="https://unpkg.com/scrollreveal/dist/scrollreveal.min.js"></script>