Wikipedia Random Episode

Creates a button on wikipedia pages that follow the pattern of "List of x Episodes" and has a table of episodes where the episode titles are in a cell with the class of "summary". When the button is clicked an output of a random episode title is shown. It won't work on any page with a list of episodes if it doesn't follow that pattern. The button will also show up on some pages that don't actually have the full list of episodes if it matches the url pattern.