Git 2 session content

[DanyloPiatyhorets]

1. Please add main points (4 - 5 questions as you did) for the git session 2 (and 3 4 as well if possible) as you did for the first session on the https://www.css-city.com/se
2. Please make notion link valid for git session 2 (and 3 4 as well if possible)