Per capita, for each metric

[Kyle Grover]

Since we're comparing countries of vastly different sizes, per capita figures can be much more informative. By pulling the population data from the UN or elsewhere we could provide:

• confirmed per capita per country
• recovered per capita per country
• deaths per capita per country
• and perhaps active cases per capita per country

[Kyle Grover]

oops this might be a duplicate of #23

[Oleksii Trekhleb]

Closing this one in favour of #23