Suggest testing with "Vagrant Gopher"

CONTRIBUTING.md

@@ -28,11 +28,12 @@ fsnotify uses build tags to compile different code on Linux, BSD, OS X, and Wind
 
 Before doing a pull request, please do your best to test your changes on multiple platforms, and list which platforms you were able/unable to test on.
 
-To make cross-platform testing easier, we are providing a Vagrantfile for Linux and BSD.
+To make cross-platform testing easier, we've created a Vagrantfile for Linux and BSD.
 
 * Install [Vagrant](http://www.vagrantup.com/) and [VirtualBox](https://www.virtualbox.org/)
-* Run `vagrant up` from the project folder. You can also setup just one box with `vagrant up linux` or `vagrant up bsd` (note: the BSD box doesn't support Windows hosts at this time)
-* Once setup, you can run the test suite on a given OS with a single command `vagrant ssh bsd -c 'go test ./...'`.
+* Setup [Vagrant Gopher](https://github.com/gophertown/vagrant-gopher) in your `src` folder.
+* Run `vagrant up` from the project folder. You can also setup just one box with `vagrant up linux` or `vagrant up bsd` (note: the BSD box doesn't support Windows hosts at this time, and NFS may prompt for your host OS password)
+* Once setup, you can run the test suite on a given OS with a single command `vagrant ssh linux -c 'cd howeyc/fsnotify; go test ./...'`.
 * When you're done, you will want to halt or destroy the vagrant boxes.
 
 Notice: fsnotify file system events won't work on shared folders. The tests get around this limitation by using a tmp directory, but it is something to be aware of when logging in with `vagrant ssh linux` to do some manual testing.