Improve Guidance (interactive tutorial)

[lennczar]

Is your feature request related to a problem? Please describe.
Users are confused about the workflow of the website (e.g. #55)

Describe alternatives you've considered
any of the below

• more background tutorials
• interactive tutorial on first visit (with option to retake tutorial)
• optical adjustments to website component that might create the notion of a workflow
  e.g.
  

[lennczar]

As suggested in #100, a library like introjs may be of use here