A tutorial is a detailed procedure or set of procedures. A tutorial shows you how to do something. It could be a step-by-step guide interspersed with screenshots or a video where a process is captured and explained with a voiceover.
What is the difference between a tutorial and a procedure? Sometimes there is no difference. Usually a tutorial has real life use case and shows you how to do something longer than a few steps. For example, setting up a new project isn't a procedure in itself. It is however a good subject for a tutorial.
Tutorials in documentation