This is an example of an extra page
You can use this to add structure and introduce chapters/modules and not have everything on one page.
You can even add subchapters to this chapter by creating another .md file (e.g., chapter-1-1) if you edit the header of this file to be something like:
---
layout: default
title: Chapter 1 - Getting Started with Roihu
nav_order: 2
has_children: true
---
… and the header of the new subchapter as:
---
layout: default
title: Authentication & Environment
parent: Chapter 1 - Getting Started with Roihu # Matches the title of the parent page
nav_order: 1 # Order within the chapter
---
all pages other than index.md can have any name.