some changes

Author: Asabeneh

readme.md

@@ -146,14 +146,22 @@ python
 ![Python Scripting Shell](./images/opening_python_shell.png)
 
 The Python interactive shell is opened and it is waiting for you to write Python code(Python script). You will write your Python script next to this symbol >>> and then click Enter.
-Let us write our very first script on the Python scripting shell.
 
-![Python script on Python shell](./images/adding_on_python_shell.png)
+```py
+asabeneh@Asabeneh:~$ python --version
+Python 3.9.6
+```
 
 Well done, you wrote your first Python script on Python interactive shell. How do we close the Python interactive shell ?
 To close the shell, next to this symbol >> write **exit()** command and press Enter.
 
-![Exit from python shell](./images/exit_from_shell.png)
+```py
+asabeneh@Asabeneh:~$ python
+Python 3.9.6 (default, Jun 28 2021, 15:26:21)
+[Clang 11.0.0 (clang-1100.0.33.8)] on darwin
+Type "help", "copyright", "credits" or "license" for more information.
+>>> |
+```
 
 Now, you know how to open the Python interactive shell and how to exit from it.