Follow the command below,

git init -b main

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#optional if your Git 2.27.1 or an earlier version,
git init && git symbolic-ref HEAD refs/heads/main

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$ git add .
# Adds the files in the local repository and stages them for commit. To unstage a file, use 'git reset HEAD YOUR-FILE'.

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$ git commit -m "First commit"
# Commits the tracked changes and prepares them to be pushed to a remote repository. 
#To remove this commit and modify the file, use 'git reset --soft HEAD~1' and commit and add the file again.

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# REMOTE-URL you found in your git ssh URL
git remote add origin REMOTE-URL

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# To verify that you set the remote URL correctly
git remote -v

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# To push
git push origin main