title: How to create an automated application tour / walkthrough?
body: <p>I am creating an angular-js based web application. I want to create an automated walkthrough/app-tour for the same - just like we see on google or facebook when they release some  new features/buttons.</p>
  
  <p>This is to ask the community if they  can direct me to some tutorials. Also, I would like to create text boxes pointing at my features, say some button in the app. How do I make sure that this text box is positioned at the same place as the button?</p>