High-level steps on how to deploy to Vercel

[RicoTrevisan]

What kind of change does this PR introduce?

Documentation

What is the current behavior?

n/a

What is the new behavior?

n/a

Additional context

n/a

[erictuvesson]

We are updating the documentation to target the open source version of Noodl. In the open source version you will need to use a non-noodl git provider to utilize version control, for example GitHub. Maybe this could be combined with a guide like this?

What do you guys say @michaelcartner @mikaeltellhed ?