improve README formatting

Author: dbacher-linear

README.md

@@ -1,17 +1,10 @@
 # Overview
 
-This repository contains the Vagrant setup files to create a Ubuntu VM
-running the clouddata services as described on the dustcloud blog post,
-Building clouddata.dustcloud.org.
+This repository contains the [Vagrant](https://www.vagrantup.com/) setup files to create a Ubuntu VM running the clouddata services as described on the dustcloud blog post, [Building clouddata.dustcloud.org](https://dustcloud.atlassian.net/wiki/display/ALLDOC/2016/06/02/Building+clouddata.dustcloud.org).
 
-https://dustcloud.atlassian.net/wiki/display/ALLDOC/2016/06/02/Building+clouddata.dustcloud.org
+The [Vagrant VM](https://atlas.hashicorp.com/dbacher-linear/boxes/dust-clouddata) built with this definition is published to Vagrant Cloud and can be used as a starting point to customize your own cloud VM. 
 
-The Vagrant VM is published to Vagrant Cloud.
-
-https://atlas.hashicorp.com/dbacher-linear/boxes/dust-clouddata
-
-The Vagrant definition automates much of the package installation and
-configuration.
+The Vagrant definition automates much of the package installation and configuration.
 
 There are several steps that are not automated:
 
@@ -27,12 +20,12 @@ There are several steps that are not automated:
 
 Bring up the VM:
 
-$ vagrant up
+    $ vagrant up
 
 Stop a running VM:
 
-$ vagrant halt
+    $ vagrant halt
 
 Create a package from the current VM:
 
-$ vagrant package --output clouddata.box
+    $ vagrant package --output clouddata.box