uploading an xcode project to github

github xcode project

// adding xcode project to github
// create git repo on github
// go to directory with .xcodeproj file

git init
git add .
git commit -m 'initial commit'
git remote add origin git@github.com:tonyalbor/REPOSITORY.git
git pull origin master
git push origin master

fatal: Could not read from remote repository because you already set path of particular folder, @ try change path at another folder @ it solve my same problem

and if I would update my project, how would I push it to github?
Do I have to do all these steps again?

fatal: Could not read from remote repository.