This fork presents a line chart of San Francisco weekly temperatures, showing a smooth curve that connects individual temperature readings over time. The chart includes labeled axes for time and temperature, with circles marking each data point. Built with React and D3 v5, it uses `scaleTime` and `scaleLinear` for positioning and `curveNatural` for the stylized line path. Data is loaded from a CSV file, and tooltips display the day of the week for each point.