Hello VizHub
This example displays a simple greeting, “Hello VizHub!”, in large, styled text centered on a dark blue screen. It demonstrates the core workflow of D3.js v5 with ES6 modules by importing the `select` function from the D3 library and a local `message` constant from `myMessage.js`. The code then uses `select('#message')` to set the text content of that HTML element, while `styles.css` applies an imported Ubuntu font and color scheme. This serves as a minimal, functional template for building and importing modules in VizHub.