Fix up README markup [ci skip]

README.md

@@ -28,17 +28,15 @@ Installation
 
 1. Add the following line to your application's Gemfile
 
-     gem "spree_paypal_express", :git => "git://github.com/spree/spree_paypal_express.git"
-
-**Note:** The :git option is only required for the edge version, and can be removed to used the released gem.
+        gem "spree_paypal_express", :git => "git://github.com/spree/spree_paypal_express.git"
 
 2. Install the gem using Bundler:
 
-    bundle install
+        bundle install
 
 3. Copy & run migrations
 
-    bundle exec rails g spree_paypal_express:install
+        bundle exec rails g spree_paypal_express:install
 
 Versions
 ========
@@ -53,11 +51,11 @@ eCheck payments are now fully supported and PayPal's Instant Payment Notificatio
 
 2. Set the IPN URL on your PayPal account (under Profile on PayPal's website) to:
 
-     https://www.yourstore.com/paypal_notify
+         https://www.yourstore.com/paypal_notify
 
 3. Enable auto_capture within Spree (as eCheck payments are only supported for purchase and not authorize requests).
 
-     Spree::Config.set(:auto_capture => true)
+        Spree::Config.set(:auto_capture => true)
 
      **Please note if you accept foreign currency:**
 
@@ -141,11 +139,11 @@ Running Specs
 
 1. Create Test App
 
-    rake test_app
+        rake test_app
 
 2. Run Specs
 
-    rake spec
+        rake spec
 
 NOTES
 =====