README.md in colissimo_label-0.2.0 vs README.md in colissimo_label-0.3.0

@@ -84,11 +84,11 @@
           country_code: 'Normalized country code of the addressee',
           phone:        'Phone number of the addressee',
           mobile:       'Mobile number of the addressee',
           email:        'Email of the addressee'
         }
-      ).call
+      ).perform
 ```
 
 For a foreign address (which required customs declaration):
 
 ```ruby
@@ -125,10 +125,10 @@
             country_code:  'FR',
             currency_code: 'EUR',
             customs_code:  'hsCode' # Harmonized system code of your product
           }
         ]
-      ).call
+      ).perform
 ```
 
 In both cases, if the label cannot be generated it raises a StandardError with the reason. Otherwise, the parcel number is returned and files saved in the specified folders.
 
 ## Documentation