add git additions and deletions

[wsngamerz]

Can you add a pie chart or just a list of some sort which shows how many additions and deletions each author has made.

[IonicaBizau]

Contributions are welcome!

[Swish78]

Hello,

My proposal is to create a stacked bar plot where each bar represents an author, with contributions stacked to display both additions and deletions. Given that repositories may have numerous contributors, we can set a default threshold value for contributions. If an author meets this threshold, they will have a dedicated bar in the plot.

I'd appreciate your guidance and any specific preferences for implementing this in the "git-stats" repository. Assign this issue to me, and I'll get to work on making this feature a reality.