Please help create a collection

[abuturabofficial]

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How did you create the site?

Generated from chirpy-starter

Description

I want to create a notes collection which contains all my notes of different courses I have taken, with preferably having a nesting sub-collection of notes/<course name>. How to achieve it? Any help would be greatly appreciated.

Operations you have already tried

I was able to make the collection and the layout of the individual note was of a post, but when I go to mysite/notes it lists all the notes files in the plain HTML.

How achieve this? I'm a total newbie and tried to follow the official docs, as well as copying some layouts of the chirpy theme and putting them in the _layouts dir, but to no avail. Can someone guide me or point me to the easy-to-understand guide?

Anything else?

Currently, I don't have any screenshots as I tried to create collections almost a week ago, and got nowhere, then just gave up.

Today I again tried, by putting

collections:
  notes:
    output: true

and created _notes dir, and also copied the home.html from chirpy layouts to the _layouts/notes.html with the front matter:

---
layout: home
title: Notes
permalink: /notes/
---

I also deleted the original front matter of the home.html.

But today I wasn't even getting anything, but 404 error when I went to localhost:4000/notes