updates MOTD

Author: fxn

README.md

@@ -25,7 +25,7 @@ That's it.
 After the installation has finished, you can access the virtual machine with
 
     host $ vagrant ssh
-    Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-36-generic i686)
+    Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-55-generic x86_64)
     ...
     vagrant@rails-dev-box:~$