Update README.md to point to https://github.com/pkp/ojs-vagrant.

README.md

+This repository is deprecated. Please use https://github.com/pkp/ojs-vagrant.
+
 ## Introduction
 
 A test/play virtual machine for [Open Journal Systems](http://pkp.sfu.ca/ojs/). It should work on any operating system that supports VirtualBox and Vagrant.
@@ -57,4 +59,4 @@ The virtual machine runs:
 
 ## Thanks
 
-This Vagrant virtual machine is based on [Islandora Vagrant](https://github.com/Islandora-Labs/islandora_vagrant).
+This Vagrant virtual machine is based on [Islandora Vagrant](https://github.com/Islandora-Labs/islandora_vagrant).
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