openconnect: corrected instructions

Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org>

net/openconnect/README

@@ -19,7 +19,7 @@ The additional files are also used:
 
 After these are setup you can initiate the VPN using "ifup MYVPN", and
 deinitialize it using ifdown. You may also use the luci web interface
-(Network -> Interfaces -> AVPN Connect).
+(Network -> Interfaces -> MYVPN Connect).
 
 Note that you need to configure the firewall to allow communication between
 the MYVPN interface and lan.