Add resource to [qb] folder
Add image to qb-inventory/html/images
Add below code into qb-core/shared.lua
['notepad'] = {['name'] = 'notepad', ['label'] = 'Notepad', ['weight'] = 3, ['type'] = 'item', ['image'] = 'notepad.png', ['unique'] = true, ['useable'] = true, ['shouldClose'] = true, ['combinable'] = nil, ['description'] = 'A peice of paper to write things down on'},