First of all let me say something, Max, you're the inspiration :)

1) Sorry for not following the Guideline, It just went out of my mind. Lesson learned, won't repeat.

Actually this is first time I'm doing something practically with data, so gradually I'll try to learn things and minimize my mistakes.

2) Yes, you're right. I'll change it.

3) Honestly speaking, I was getting the X-axis ruler all mixed up because I was plotting 'repository name' on X-axis. So as a workaround I made a new column of digits, that fits in the image.