Follow these steps if you would like to create Demo Blog and Single Post pages that would be visible from your published link.
Create the Demo Blog Templates
Required Names for Demo Templates:
Demo Blog - Delete This
Demo Single Post - Delete This
Setup Links to Demo Blog Pages
Update the Design
Update the design to display how it might look when filled with live content from a blog.
Demo Blog Page: Duplicate the canvas(es) for a regular post and replace the example images, post title and post excerpt to give a good representation of what a blog with multiple posts will look like. Link all of those posts to the Demo Single Post page.
Demo Single Post Page: Make this page look like it's a real post by including images and text within the canvas currently holding your Post Content text box. Remember it's just a visual example... not a live blog page.