add config files

assignment2/README.txt

@@ -28,15 +28,16 @@ Write-up
 
 - How to compile, deploy and run your implementation
     Config file to indicate the addresses of the paxos group: config.json
-    Spawn the paxos group based on the config file:
+    Spawn the paxos group based on the config file using:
         python3 main.py
-    Start the client and send commands to a random paxos server based on the config file:
-        python3 client.py
-        lock 1
-        lock 2
-        unlock 1
-        ...
-        exit
+    Start the client and send commands to a random paxos server based on the config file using:
+        python3 client.py client_host client_port
+        e.g. python3 client.py localhost 0
+             lock 1
+             lock 2
+             unlock 1
+             ...
+             exit
 
 - Any issues or scenarios explicitly not considered
     If a client send a message and it gets dropped, we assume it was lost and won't be executed as clients won't resend messages