Here is how to create a Home Page. The Home Page is used to display your Slider in fullscreen  and to show a widget area on the side.

You use any page as home page but now we are going to talk how use the same Home page as in the demo site.

First go to your Admin Panel > Pages > Add new,  you can put any title, in this case "Home".

On the Template dropdown select Home:

Click Publish  and now you will see the page exactly as the demo site. But this is not your home page yet, for that we have to go to Settings > Reading and select this new page as our Home Page:

Click Save Changes and that's it. Now when people enter your site, the first page they will see is this one.

And that's it, you have your Home Page in place.