Hello VizHub
This example demonstrates the basic capability of VizHub to display a web page with a simple, styled text message. It renders a large, centered "Hello VizHub!" greeting in an Ubuntu font against a dark navy background. The page is constructed using an HTML file that loads a JavaScript bundle and a stylesheet. The JavaScript code imports D3's `select` function to target a specific HTML element and set its text content, while also importing a custom module that defines the message string.