Hello VizHub
This example shows a simple webpage displaying the text "Hello VizHub!" centered on a dark blue background using the Ubuntu font. It demonstrates basic VizHub capabilities, including HTML structure, CSS styling, and ES6 module imports. The code uses d3.select to set the text content of a div element, while a separate JavaScript module exports the message string. The page loads D3.js from a CDN and links to external Google Fonts.