title: MindTap by Cengage Learning "HTML/ CSS" Texbook GitHub integration
body: <p>This is my first official Stack Overflow question, because I am really STUCK! I can't seem to push my source code to my remote GitHub repository.</p>
  <p><img src="https://i.stack.imgur.com/uNb6T.png" alt="screen shot of terminal commands not working" /></p>
  <p>What am I missing!?!?!</p>