diff --git a/README.md b/README.md
index 4858751..c662759 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
-# crypt
+# Encrypted chat
 
-Encrypted chat
\ No newline at end of file
+## Usage:
+### Server: `./server.py "IP address" "Port" "Key"*`, eg. `./server.py "127.0.0.1" "12345"`
+### Client: `./client.py "IP address" "Port" "Key"*`, eg. `./client.py "127.0.0.1" "12345" "ojzqTVTIsuE6nemN9huFlYMNmyTHr9dUu-E5bL8HrTo="`
+`*` - Optionally, but make sure that they both use the same key.
diff --git a/client.py b/client.py
index 22444bc..e7c235b 100755
--- a/client.py
+++ b/client.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 from socket import socket, AF_INET, SOCK_STREAM
 from threading import Thread
 from time import sleep
diff --git a/server.py b/server.py
index dbafe3a..1831aa9 100755
--- a/server.py
+++ b/server.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 from socket import socket, AF_INET, SOCK_STREAM
 from threading import Thread
 from time import sleep