README.md in easypost-2.1.8 vs README.md in easypost-2.1.9

@@ -46,11 +46,11 @@
   :phone => '415-456-7890'
 )
 
 parcel = EasyPost::Parcel.create(
   :width => 15.2,
-  :length => 18, 
+  :length => 18,
   :height => 9.5,
   :weight => 35.1
 )
 
 customs_item = EasyPost::CustomsItem.create(
@@ -82,9 +82,13 @@
 )
 
 shipment.buy(
   :rate => shipment.lowest_rate
 )
+
+shipment.insure(amount: 100)
+
+puts shipment.insurance
 
 puts shipment.postage_label.label_url
 
 ```