Added a useful link

Have added a useful resource to learn about python programming in detail from the scaler topics.

Author: Vaishnavi Amira Yada

Installing_and_Using_Python.md

@@ -30,6 +30,7 @@ Other Private tutorials at:
 1. [Tutorials Point](https://www.tutorialspoint.com/python/index.htm)
 2. [W3Schools](https://www.w3schools.com/python/)
 3. [Geeks for Geeks](https://www.geeksforgeeks.org/python-programming-language/)
+4. [Scaler Topics](https://www.scaler.com/topics/python/what-is-python/)
 
 ---