A documentation layout is the way help pages are arranged so people can find and read instructions. It is like a well-organized handbook with sections, page names, and a contents list.
A guide might keep the article in the middle, section links nearby, and a list of related topics at the side. This makes it easier to follow a long explanation without losing your place.
Use clear headings and a consistent structure. A documentation page should help someone complete a task, not make them learn the whole product before they can find one answer.