git branch
git pull origin master && git fetch
git checkout -b homework_1_missing_places
git add .
git commit -m "Add your own message here"
git push --set-upstream origin homework_1_missing_places
git branch
git add .
git commit -m "Add your own message here"
git push --set-upstream origin homework_1_missing_places
Let reviewers know that you updated the code adding a comment.
They are going through and resolve their comments.
When you get an approval comment (at least one of the teachers), you can merge your pull request in master.