This example displays a CSV dataset loaded from a GitHub Gist, summarizing the total row count and previewing the first five records in an HTML table. It then renders an SVG bar chart showing the first column as categorical labels on the x-axis and the second column as quantitative values on the y-axis using `d3.scaleBand`, `d3.scaleLinear`, and `d3.axisBottom`/`d3.axisLeft`. The chart title and axes are added via D3 selections. Styling uses embedded CSS, and data loading relies on `d3.csv`.