consider making a tutorial

[kaczmarj]

a tutorial can help orient new users to the app.

possible libraries

• https://introjs.com/ (seems like a great option, simple setup, lightweight)
• https://bootstraptour.com/

one drawback is that webgen is constantly changing, so we would have to maintain this tutorial. if making the tutorial is straightforward, this might not be so bad. but if making the tutorial is difficult, we might want to reconsider doing this.