Command line arguments added

Author: Ayushjain2205

Password-Manager-GUI/README.md

@@ -5,11 +5,11 @@ This script opens up a Password Manager GUI on execution. It allows the user to
 In order to run this script, you need to have Python and pip installed on your system. 
 After you're done installing Python and pip, Open the terminal in the project folder and run
 ```
-python passwords.py
+python passwords.py <Master password>
 ```
 or
 ```
-python3 passwords.py
+python3 passwords.py <Master password>
 ```
 depending upon the python version. Make sure that you are running the command from the same virtual environment in which the required modules are installed.