Can't publish package: "Package must be in a Git repository before publishing", but it isn't true (I think)

[Luka108]

I have a simple problem: I created a simple package for Atom, but I can't publish it because when I launch apm publish minor I receive the error
Package must be in a Git repository before publishing: https://help.github.com/articles/create-a-repo
But in fact it is in a repo, and you can find it here, where you can also check the package.json, to see if it's everything ok.
I'm struggling with this for two days, I hope I'll find a solution here.

Thank you in advance.

[Luka108]

I have an update

I somehow cloned the repo to my pc, and tried running the apm publish minor from the newly created folder.
It asked me the Atom token, so fantastic!
Then another error occurred, but I think I'm further ahead than before:

As you can see, git asks me to tell him who I am, but I run the suggested instruction right before the last.
So, what to do?

[Luka108]

Now I discovered that my package has appeared here, and it's amazing!
I can't find it by searching in Atom, but maybe I've to wait for some minutes.
Anyway, I think that the content of the README file should be shown on Atom Package web page, so it's clear that there's something wrong.

[Luka108]

I solved the issue omitting the arg --global to say git who I am.

Thanks to all.