README.md in pesapal-1.2.1 vs README.md in pesapal-1.2.2

@@ -114,18 +114,18 @@
 should have it already in place with some default values. Feel free to change
 them appropriately.
 
 ```yaml
 development:
-    callback_url: 'http://0.0.0.0:3000/pesapal/callback'
-    consumer_key: '<YOUR_CONSUMER_KEY>'
-    consumer_secret: '<YOUR_CONSUMER_SECRET>'
+  callback_url: 'http://0.0.0.0:3000/pesapal/callback'
+  consumer_key: '<YOUR_CONSUMER_KEY>'
+  consumer_secret: '<YOUR_CONSUMER_SECRET>'
 
 production:
-    callback_url: 'http://1.2.3.4:3000/pesapal/callback'
-    consumer_key: '<YOUR_CONSUMER_KEY>'
-    consumer_secret: '<YOUR_CONSUMER_SECRET>'
+  callback_url: 'http://1.2.3.4:3000/pesapal/callback'
+  consumer_key: '<YOUR_CONSUMER_KEY>'
+  consumer_secret: '<YOUR_CONSUMER_SECRET>'
 ```
 
 _Ps: Immediately after initializing the Pesapal object, some people might find
 it peculiar that the `pesapal.config` is an empty hash i.e. `{}`. Don't worry.
 If you have set up the `pesapal.yml` correctly, any attempt to run any of the
@@ -143,10 +143,10 @@
 ```ruby
 #set order details
 pesapal.order_details = { :amount => 1000,
                           :description => 'this is the transaction description',
                           :type => 'MERCHANT',
-                          :reference => 808-707-606,
+                          :reference => '808-707-606',
                           :first_name => 'Swaleh',
                           :last_name => 'Mdoe',
                           :email => '[e-mail]',
                           :phonenumber => '[phone]',
                           :currency => 'KES'