Update README.md

Author: HassanMahmoodAwan

README.md

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 # Object-Oriented-Programming-OOP-using-Python
-Mastering the Concepts of Object Oriented Programming using Python. As its one way of writing code in Python. Important Point is that Python Build-in Functions are also developed using OOP approach. So, its necessary to master OOP concepts and use in Programming. This Repo provides all important Concepts of OOP with Explanation
+Mastering the Concepts of Object Oriented Programming using Python. As its one way of writing code in Python. Important Point is that Python Build-in Functions are also developed using OOP approach. So, its necessary to master OOP concepts and use in Programming. This Repo provides all important Concepts of OOP with  deep Explanation.
+
+Topics Covered in the Repo are
+- Class
+- Objects
+- Types of Methods
+- Inheritance
+- Polymorhism
+- Encapsulation
+- Data Abstraction
+
+Important Point
+
+    1.  One class have many instances called Objects.
+    2. Attributes|Property, Behavior, Methods.
+    3. Attributes define by variables and behavior by methods.
+    4. Self is used to represent an object in a method.
+    5.  __Init__ is a method for defining Attribute for objects, it's like constructor.
+
+Note: Very important programming Concepts, give max time to work on it.