…or create a new repository on the command line

• echo "# magento-for-pwa" >> README.md
• git init
• git add README.md
• git commit -m "first commit"
• git remote add origin https://github.com/subhajyotiint/magento-for-pwa.git
• git push -u origin master

…or push an existing repository from the command line

• git remote add origin https://github.com/subhajyotiint/magento-for-pwa.git
• git push -u origin master