added more package dependencies

docs/index.rst

@@ -20,7 +20,7 @@ Use the Puppet repository to install the complete Wattsworth stack
 .. code-block:: bash
 
    $> sudo apt-get update
-   $> sudo apt-get install puppet
+   $> sudo apt-get install puppet git
    $> git clone https://git.wattsworth.net/wattsworth/puppet.git
    $> cd puppet
    $> sudo puppet apply --modulepath=./modules --verbose site.pp

modules/common/manifests/init.pp

@@ -3,7 +3,7 @@
 # Packages required by multiple modules
 #
 class common {
-  $pkgs=['build-essential','screen','octave','emacs','openvpn']
+  $pkgs=['build-essential','screen','octave','emacs','openvpn', 'gnome-tweak-tool']
   
   package { $pkgs:
     ensure => present