Git global setup

git config --global user.name "Przemek"
git config --global user.email "[email protected]"

Create a new repository

git clone [email protected]:przemek.spychalski/Flats-reservation.git
cd Flats-reservation
touch README.md
git add README.md
git commit -m "add README"
git push -u origin master

Existing folder or Git repository

cd existing_folder
git init
git remote add origin [email protected]:przemek.spychalski/Flats-reservation.git
git add .
git commit
git push -u origin master