I spent 800 hours studying web development and I'm having a difficult time finding a job. I sent 150 resumes out. I was told it was because I don't have a project portfolio to give to startups and mid-size businesses. I'm going to put as much effort as I can toward learning Git/GitHub. How long does it take to learn Git/GitHub? 10 hours? 100 hours? I just need it to do the portfolio. Thanks!