title: git push -u origin master, username and password
body: <p>I am currently going through Hartl's Ruby on Rails tutorial, and I am stuck in the GitHub section. The following happens whenever I try to push my repository up to GitHub:</p>
  
  <pre><code>Hannas-MacBook-Air:first_app Hannananana$ git remote add origin https://github.com/hannaselvaag/first_app.git
  Hannas-MacBook-Air:first_app Hannananana$ git push -u origin master
  Username: 
  Password: 
  
  ^[error: The requested URL returned error: 403 while accessing  
  
  https://github.com/hannaselvaag/first_app.git/info/refs
  
  fatal: HTTP request failed
  </code></pre>
  
  <p>I have created a username and password at github.com, but the terminal wont let me type anything in it. Any suggestions?</p>