change broken cover image

Hi @pdeitel
I change the broken image cover of book in readme.md file.

Author: YasinRezvani

README.md

@@ -7,7 +7,7 @@ Then terminate IPython interactive mode (Ctrl + D twice) after you close the scr
 # PythonForProgrammers
 This repository contains the source code and supporting files associated with our book <a href=https://amzn.to/2Kd8dQk target="_blank">Python for Programmers</a>, which is a subset of our book <a href=https://amzn.to/2KfCptN target="_blank">Intro to Python for Computer Science and Data Science: Learning to Program with AI, Big Data and the Cloud.</a>
 
-![Cover image for Python for Programmers](http://deitel.com/bookresources/PythonFP/PythonForProgrammersCover.png)
+![Cover image for Python for Programmers](https://user-images.githubusercontent.com/77124662/176289616-9877619a-7fb8-4876-8872-cf36f2a27a3c.png)
 
 These files are Copyright 2019 by Pearson Education, Inc. All Rights Reserved.