Introduction

• Copy the link in config.yml under the property default_url

• open it in your browser and download the file

• Extract the file in %appdata%\.minecraft\resourcepacks\ItemsAdderResPack (or name it how you want)

• open Minecraft, in the resourcepacks options select ItemsAdderResPack

• open config.yml and set apply_on_join to false while you are editing the resourcepack locally

• join the server, then start editing the files inside ItemsAdderResPack

• After you've edited something in the resourcepack, to reload the resourcepack press F3+T on your keyboard

Publish the resourcepack

• set apply_on_join to true

• set use_default to false

• zip the ItemsAdderResPack folder and upload it on an hosting website

• set custom_url to your uploaded file download link

• reload plugin

DONE!

You must upload the resourcepack .zip file on a hosting service that allows you to direct download the file (which doesn't shows a "click here to download" button or a download page).

You can upload it on Dropbox, get the share link and change ?dl=0 at the end of the link to ?dl=1