title: grunt serve not working
body: <p>Hi looking for some help. I have installed</p>
  
  <ol>
  <li>node.js</li>
  <li>yeoman
  3.angular</li>
  <li>npm install -g generator-webapp</li>
  </ol>
  
  <p>when I go to test it on server using grunt serve, I get this response</p>
  
  <p>-bash: grunt: command not found</p>
  
  <p>don't know what i'm doing wrong</p>
  
  <p>Any help greatly appreciated</p>