Patrick Haußmann

if we would have: `const lastUpdate = history[history.length - 1].date;` then it would be in line with what we return in the function `getRValue`. Alternatively, we could also get it...

> `/germany/history/rValue/:days` would be very nice! I am already in the process :)

i am very sorry that it is not clear to me. but what should i change/add in `README.md`?