Provide list of icons

It is hard to find fitting icons without a list.

You have to import each individually and add them to a diagram to discover what the icon is.

A list, like in https://github.com/tupadr3/plantuml-icon-font-sprites, would be really good. 
Example from there:
https://github.com/tupadr3/plantuml-icon-font-sprites/blob/master/devicons/index.md

BR! /marcus