how to push folder into private repo github
#Just follow next steps in console terminal ;)
git init #Initialize git in folder
git add . #add all files of folder to be pushed
git commit -m "First commit" #add first commit
git remote add origin remote_repository_URL #replace with your remote repo url
git remote -v #verify that your remote repository url is properly found
git push --force origin master #force pushing your project into github repo