Incorrect scoring with greater than 9 results

[clintocarpenter]

The issue is that the .sort() in the argsort function will by default use a string conversion so "11" sorts ahead of "9". I found this when trying to run

elo.getNewRatings([1688,1590,1581,1582,1550,1500,1465,1455,1435,1453,1432,1472,1526], [1,2,3,4,5,6,7,8,9,10,11,11,12]);

It fails the validation since there is not a zero score and no tie for last place. If you sort the results by numeric values it all works correctly.

basically just need

export const argsort = (arr: number[]) =>
  arr
    .map((element, index) => decor(element, index))
    .sort((a, b) => (a[0] - b[0]))
    .map((element) => undecor(element));

If you want to give me ability to create a branch/PR I'd be happy to put that change up for you.

[clintocarpenter]

created PR for you to look at from our fork. It seems to do the trick for me