Filed on behalf of user Jeffrey Chui from a comment in the docs:
Thank you for making the tutorial! Very helpful for beginners like me. (smile)
One silly problem I had was figuring out the commit button. Since there are two commit buttons; one at the top and one at the middle, I couldn't push any changes until I found the second commit button in the middle and realised the one at the menu bar did not actually commit.
Perhaps it would be better to rename the commit button "Commit your changes" and maybe make it red (or a colour that's distinct and easy to see)?