Update sample vagrant openssh config

Author: Peter Willis

vagrant_openssh.conf

@@ -1,12 +1,15 @@
 # This is an example OpenSSH config you can SSH into your Vagrant machine on Windows.
-Host default
+# You can view the current configuration by running:
+#      c:\files\vagrant\devbox>vagrant ssh-config
+
+Host devbox
   HostName 127.0.0.1
   User vagrant
   Port 2222
   UserKnownHostsFile /dev/null
   StrictHostKeyChecking no
   PasswordAuthentication no
-  IdentityFile C:/files/vagrant/devbox/.vagrant/machines/default/virtualbox/private_key
+  IdentityFile c:/files/vagrant/devbox/.vagrant/machines/devbox/virtualbox/private_key
   IdentitiesOnly yes
   LogLevel FATAL
   ForwardX11 yes