(abmitious nice to have) make all-time/90 days line chart with catetgories over time

[Isabel-S]

https://stackoverflow.com/questions/42080051/d3-single-and-multi-line-chart-tooltips https://stackoverflow.com/questions/34886070/multiseries-line-chart-with-mouseover-tooltip

[Isabel-S]

• [x] format data (start with and end with initialize rows with 0s for each category) (for each row in made json, +1 for each category)
• [x] modify stack overflow code
• [ ] edit tool tip to show box instead

[Isabel-S]

closed because too ambitious