[CS 6740] Updated README.txt

README.txt

Program description
===================
This program provides a secure chat application with multiple clients and a single server.

Detailed system design is available in the document final-project-paracha-sun.pdf.

Requirements	
============
Python 3 was used for developing this program, specific modules required are listed in requirements.txt

How to run
=====
After putting server configuration in the file server.ini, do:
$ python server.py -sp 9090 -sk keys/private_key.der
$ python client.py -c server.ini

Client will be promoted to enter login credentials. After a successful login, client can run these commands:
$ list
$ logout
$ send <username> <arbitrary length message>

Sample users in the format (username, password)
=====
(talha, Talha**123)
(shuwen, Shuwen**123)
(ali, Ali**123)
(ahmad, Ahmad**123)