This line chart visualizes movie ratings over time, with a red path mapping each rating to its corresponding movie count. The chart includes labeled axes, grid lines, and a title, with ratings on the x-axis and movie counts on the y-axis. Built with D3 v5, it uses `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` to render SVG elements, processing CSV data loaded via `d3.csv` from a GitHub gist.