Update screenshot in readme to reflect MMJ web content

Author: bevacqua

readme.md

@@ -20,7 +20,7 @@ This book focuses on two aspects of JavaScript development: modularity and lever
 
 The book is publicly available in HTML format and **free forever**. Each book chapter is styled similarly to how Pony Foo blog posts _— such as the [book series launch announcement][announcement] —_ are styled, which makes for a fairly enjoyable read as far as HTML books go.
 
-[<img align='left' src='https://i.imgur.com/8R8wBTQ.png' />][toc]
+[<img align='left' src='https://i.imgur.com/iA9ak4K.png' />][toc]
 
 *Every book in the series will be distributed in this way.*
 
@@ -30,6 +30,10 @@ It took me a bit of time but I've managed to get the `git` repository to trigger
 
 _**Read** the [HTML version of the book][toc] on Pony Foo! 🦄_
 
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 ## Source Code Repository!
 
 I want this book series to be as widely available as possible, and the best course of action for that purpose was to release the vast majority of its contents to the open-source community.