paypro: example - explain extra arguments in readme file.

examples/PayPro/README.md

@@ -18,8 +18,9 @@ To run our payment protocol demonstration in the browser, you may run:
 $ node examples/PayPro/server.js -b -p 8080
 ```
 
-This will start the payment protocol demonstration server which serves outputs
-in the payment protocol request (which don't ask for *too* many testnet coins).
+This will start the payment protocol demonstration server in browser mode,
+which serves outputs in the payment protocol request (don't worry, it doesn't
+ask for *too* many testnet coins).
 
 Once the server is started, you can visit it in your browser:
 
@@ -43,3 +44,18 @@ Customer: Our payment was acknowledged!
 Customer: Message from Merchant: Thank you for your payment!
 Customer: Payment sent successfully.
 ```
+
+## Changing the server address in outputs
+
+## Other Options
+
+If you you're not connected to enough peers to broadcast your transaction (by
+default, this example only connects to the core seed peers), you can enable
+peer discovery in bitcore by passing the `--discovery` (`-d`) argument onto the
+server command line.
+
+If you don't want to actually broadcast your transaction and want to keep your
+testnet coins, you can pass `--no-tx` on the server command line.
+
+If you don't want the tests to run automatically and simply host the payment
+server, simply pass `--browser` (`-b`) as mentioned above.