piwodlaiwo
Redo of https://bl.ocks.org/mbostock/4180634 in D3v4
forked from piwodlaiwo's block: World Map in D3v4 with Auto Colors
https://d3js.org/d3.v4.min.js
https://d3js.org/topojson.v2.min.js
https://d3js.org/d3-geo-projection.v1.min.js