Furthermore, you have the possibility to bookmark the tutorial (3).
You can also copy the link to the currently displayed tutorial (4). You can read more about sharing links here.
At the top, you will find some general information about the tutorial itself. On the left side, you can find a brief summary of the scenario and some hints for your work. The steps which are part of each tutorial are located in the central area.
Picture 1: A single Tutorial
Instructions may contain links to other tutorials which you can use to acquire further related information.