In each of the tutorials, you'll find instructions for that topic, links to template reference guides, and descriptions for where/how each template is used.

Finding includes	How to locate where an include is stored in the docs repository.
Linking to internal Stitch docs	How to reference and link internal Stitch docs.
Understanding and updating sidenavs	Understand the sidenav and learn how to update it.
Understanding layouts	Understand how layouts are assigned and used.

Docs about Docs

General tutorials