Search Post(s) by Title

[stevebrownlee]

As a user, I would like to type part of the title of a post into the search bar and find any posts that contain that string.

Given that a user has typed a string into the search bar
When the user presses enter
Then any post whose title contains that substring should be presented to the user
And the list should be sorted chronologically in descending order
And the list should display the post title, publication date, and author