link to the google app store for the openvpn app

autovpn/vpn_app.py

@@ -111,8 +111,10 @@ on it and it will install itself automatically.
 Android
 -------
 
-Check out the OpenVPN app at http://code.google.com/p/ics-openvpn/,
-to use it:
+Check out the OpenVPN app at
+https://play.google.com/store/apps/details?id=de.blinkt.openvpn
+
+To use it:
 
 - Select the PKCS12 format for the credentials and select the
   <uuid>.pfx file from the ZIP archive.