Sections of the CMS documentation?

Question

CMS

Good afternoon
There are 3 sections of the documentation:
- Documentation for working with content (editing news, prices in the online store, processing orders).
- Documentation for building the site (creating pages, sections, customization, templating) (without interfering with the code).
- Documentation for writing add-ons (working with code).
What is the correct name for these 3 sections?
The first is for Users, the second and third are for Developers, but they need to be separated somehow.
Thanks

Answer 1

First - User Guide/User Manual
Second - Install & Setting
Third - Developer's Guide

Answer 2

The question is not clear. The order is already delegated to the group, why duplicate something else? The usual one2many connection.
UPD: Yes, and no one has yet canceled polymorphic relationships: https://laravel.com/docs/5.4/eloquent-relationship...