Hello

As part of my end of term programming course i'm supposed to push my project to our git server which I have done and it works fine.
The problem is that in the netbeans project folder I have a PDF file and a .c file that I want to push to the git aswell.
How can I do this in netbeans? My overseer advised that I use SourceTree but I have absolutely no idea what it is or what role it plays ,
let alone to configure it to work with netbeans and the git server.

Could someone give me some advise on this?

Thanks in advance