Update README.rst

README.rst

@@ -1,3 +1,29 @@
+Using the command-line tool
+===========================
+
+bna is a command line interface to the python-bna library. It can store and manage multiple authenticators, as well as create new ones.
+
+
+Two things to remember:
+ - Using an authenticator on the same computer as the one you're playing on is *not secure*.
+ - It is impossible (without knowing the secret) to import an existing authenticator
+
+Creating a new authenticator
+----------------------------
+::
+
+	$ bna --new --set-default
+
+Getting an authentication token
+-------------------------------
+::
+
+	$ bna
+	01234567
+
+Using the python-bna library
+============================
+
 Requesting a new authenticator
 ------------------------------
 ::
@@ -19,7 +45,7 @@ Getting a token
 	# Get and print a token
 	token, timeRemaining = bna.getToken(secret=secret)
 	print token
-	
+
 	# print a new token every time the previous one expires
 	from time import sleep
 	while True: