README.md in arkenstone-0.5.1 vs README.md in arkenstone-0.5.2

@@ -25,29 +25,33 @@
 Once, you’ve generated your new environment, `cd` over to `path/to/app`
 and run:
 
     $ vagrant up
 
-Now go grab a cup of coffee or a glass of Scotch—this part might take a
-while. The Arkenstone is busy building a new Vagrant box and doing some
-initial work for you like:
+Now go grab a cup of coffee or a glass of Scotch or two—this part might take a
+while. If The Arkenstone detects a `SLACK_TOKEN` environment variable, it will
+send a message to the associated [Slack](https://slack.com/) channel when its
+done. For instance:
 
+    $ env SLACK_TOKEN=Your/Token/1234 vagrant up
+
+For now, The Arkenstone is busy building a new Vagrant box and doing some
+initial work for you, such as:
+
 - Installing system software depencies
 - Building and installing Ruby
 - Installing and setting up PostgreSQL
 - Generating a new Rails app with [Suspenders](https://github.com/thoughtbot/suspenders)
 
 When your new environment is complete, send over an SSH command to fire
 up the Rails server:
 
     $ vagrant ssh -c '/vagrant/bin/rails server -b 0.0.0.0'
     
-You should now be able to visit your Rails app on your host machine at
+You should now be able to visit the new Rails app on your host machine at
 [http://localhost:3001](http://localhost:3001).
 
 *Voilà!*
 
 ---
 
-[(ↄ) Copyleft](http://www.gnu.org/licenses/copyleft.en.html)
-Nicholas Gunther Scheurich under the
-[GNU General Public License](http://www.gnu.org/licenses/gpl.txt)
+Copyright (c) 2016 Nicholas Scheurich under the [MIT License (MIT)](https://opensource.org/licenses/MIT)