Your Notaku website content is hosted in Notion, add content to this Notion page and click the “sync now” button in Notaku to sync your website with Notion. If you upgrade your subscription Notaku will sync the content every hour automatically.
In case you need help you can reach out on the Notaku live chat in the bottom right.
You can add pages in this Notion page and they will be displayed on your website in the left sidebar. There is no limit on the nesting level, you can put pages at any depth you want.