Update README.md

Author: Deepali-Srivastava

exercise-code/README.md

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 # Python OOP : Object oriented Programming in Python
 
 This “Python OOP : Object oriented Programming in Python” repository contains source code for the students of my online course. 
-It is part of my complete [Python Programming](https://www.udemy.com/course/python-programming-in-depth/?couponCode=GITHUBSTUDENT) course available on Udemy.
+You can learn Python in detail from my [Ultimate Python Programming](https://www.amazon.in/Ultimate-Python-Programming-programs-questions/dp/935551655X) book available on amazon.
 
 ### About the Course
+ * Instructor - Deepali Srivastava, Author of [Ultimate Python Programming](https://www.amazon.in/Ultimate-Python-Programming-programs-questions/dp/935551655X)
  * Thoroughly detailed course with complete working programs
  * Contains lots of animations to help you visualize the concepts
  * Includes quizzes and programming exercises
@@ -12,6 +13,13 @@ It is part of my complete [Python Programming](https://www.udemy.com/course/pyth
  * Lifetime Access
 
 ### Courses by [Deepali Srivastava](https://www.udemy.com/user/deepalisrivastava/)
+
+[![data-structures-algorithms-java](https://user-images.githubusercontent.com/96913690/200234744-14a5ed97-085f-44f3-9298-979c2053c580.jpg)](https://coursegalaxy.newzenler.com/courses/data-structures-algorithms-java-masterclass?coupon=GITHUB50)
+[![data-structures-algorithms-python](https://user-images.githubusercontent.com/96913690/200234827-86aec10a-bfab-4371-91fc-e2be855ff1ff.jpg)](https://coursegalaxy.newzenler.com/courses/data-structures-algorithms-python-masterclass?coupon=GITHUB50)
+[![data-structures-algorithms-c](https://user-images.githubusercontent.com/96913690/200234592-25d33957-0e9e-4cc0-b324-2a73325aca85.jpg)](https://coursegalaxy.newzenler.com/courses/data-structures-algorithms-c-masterclass?coupon=GITHUB50)
+[![data-structures-algorithms-csharp](https://user-images.githubusercontent.com/96913690/200234905-67b85dfd-20c4-4f4b-afd2-e10d3568fff8.jpg)](https://coursegalaxy.newzenler.com/courses/data-structures-algorithms-csharp-masterclass?coupon=GITHUB50)
+
+<!---
 [![python-programming-in-depth](https://user-images.githubusercontent.com/98641125/153196166-45ef8461-adb1-4f9f-b9ee-e482a5ad54a7.png)]( https://www.udemy.com/course/python-programming-in-depth/?couponCode=GITHUBSTUDENT)
 [![data-structures- and-algorithms-in-python](https://user-images.githubusercontent.com/98641125/153196027-592d0307-5130-444f-8527-802634b5cc1e.png)]( https://www.udemy.com/course/data-structures-algorithms-in-python/?couponCode=GITHUBSTUDENT)
 [![data-structures- and-algorithms-in-python-2](https://user-images.githubusercontent.com/98641125/153196106-0eb1a386-c36b-4f14-8675-9d865438f882.png)]( https://www.udemy.com/course/data-structures-and-algorithms-in-python-2/?couponCode=GITHUBSTUDENT)
@@ -20,6 +28,7 @@ It is part of my complete [Python Programming](https://www.udemy.com/course/pyth
 [![linux-commands](https://user-images.githubusercontent.com/98641125/153196567-96b3396c-8ee3-4233-b8fc-66c6b3bd830c.png)]( https://www.udemy.com/course/linux-commands/?couponCode=GITHUBSTUDENT)
 [![data-structures- and-algorithms-in-csharp](https://user-images.githubusercontent.com/98641125/153196407-99441e67-24a7-4fa0-aaea-78cb39743282.png)]( https://www.udemy.com/course/data-structures-and-algorithms-in-csharp/?couponCode=GITHUBSTUDENT)
 [![data-structures- and-algorithms-in-csharp-2](https://user-images.githubusercontent.com/98641125/153196486-9ce09c97-8724-4492-b5d6-4bb4aeb1d8bd.png)]( https://www.udemy.com/course/data-structures-and-algorithms-in-csharp-2/?couponCode=GITHUBSTUDENT)
+--->
 
 ## Copyright
 © Copyright Deepali Srivastava : All rights reserved.