This example displays a world map using an equirectangular projection, rendered as an SVG with D3 v5. The visualization shows all countries from the world-atlas TopoJSON dataset, filled in yellow with red borders, and highlights each country in gray on hover. It uses `d3.geoPath` with a `geoEquirectangular` projection and processes the TopoJSON data through the `feature` method from the topojson library to generate geographic paths.