How to properly install custom resources

Hello all,
Thank you in advance, I am super new to HA.
I have been all over the forums and google looking for a how to.
I am having trouble adding custom cards.
Specifically Paper Buttons found here: https://github.com/jcwillox/lovelace-paper-buttons-row

Installation instructions when you find a custom resource are always like this from what I have found with trying to do this, so I KNOW I am missing something.
resources:

  • url: /hacsfiles/lovelace-paper-buttons-row/paper-buttons-row.js
    type: module

I have Advanced active.
I have added the resource into the resources tab in Lovelace, but I think I am missing a step. I am lost from there. I was expecting it to pop up as a button like the other ones, but that didn’t happen. So I went down a rabbit hole and figured out how to type what I am wanting out, but then I get the error: Custom element does not exist.
I am missing a step or two… anyone know what it is? I feel like I was supposed to place a file somewhere or am supposed to be putting the code somewhere else. I created the www folder in config but have no clue what to put inside it or how to get the file to put there.

type: entities
entities:
  - type: "custom:paper-buttons-row"
    buttons:
      - light.backdoor

      - entity: light.01110061bcddc23b644c
        icon: "hass:lightbulb"
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