changed urls

Author: tdpetrou

README.md

@@ -6,10 +6,12 @@ This repository contains some notes and exercises solutions for the following bo
 
 If you are looking to become an expert, check out my books:
 
-* [Exercise Python][0]
-* [Master Data Analysis with Python][0]
-* [Master Machine Learning with Python][0]
+* [Master the Fundamentals of Python][0]
+* [Master Data Analysis with Python][1]
+* [Master Machine Learning with Python][2]
 
 They are all extremely comprehensive and offer lots of exercises with detailed solutions.
 
-[0]: https://www.dunderdata.com/store
+[0]: https://www.dunderdata.com/master-the-fundamentals-of-python
+[1]: https://dunderdata.com/master-data-analysis-with-python
+[2]: https://www.dunderdata.com/master-machine-learning-with-python