how to init a new folder into my existing git repo code example

Example 1: add github repo

create a new repository on the command line
echo "# {Repo Name}" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin https://github.com/cdcdianne/ReactJS-TheMovieDB.git
git push -u origin main
                
push an existing repository from the command line
git remote add origin https://github.com/cdcdianne/ReactJS-TheMovieDB.git
git branch -M main
git push -u origin main

Example 2: init step way to create repository git

git configuration