Update the README, acts_as_commentable will load through bundler and …

…some touchups to the migration tasks

Signed-off-by: Chris Boertien <[email protected]>

README.md

@@ -10,10 +10,6 @@ object (i.e. Order, Shipment, etc) via the admin Configuration tab.
 This is based on a fork / rename of jderrett/spree-order-comments and is now an officially
 supported extension.
 
-Requirements:
-
-* [acts\_as\_commentable](http://github.com/jackdempsey/acts_as_commentable) installed
-
 Notes:
 
 * Comments are create-only.  You cannot edit or remove them from the Admin UI.
@@ -24,20 +20,23 @@ Installation
 Add the following to your Gemfile
 
     gem "spree_comments"
-    gem "acts_as_commentable"
 
 Run:
 
     bundle install
 
 Copy over migrations via the rake task:
 
-    bundle exec rake railties:install:migrations FROM=spree_comments
+    bundle exec rake spree_comments:install:migrations
 
-Run the migrations:
+Run the migrations
 
     bundle exec rake db:migrate
 
+Or you can also run them together and save a little loading time
+
+    bundle exec rake spree_comments:install:migrations db:migrate
+
 Start your server: 
 
     rails s