README.md in erp_integration-0.3.3 vs README.md in erp_integration-0.4.0

@@ -35,18 +35,18 @@
 ### Querying third-party vendors
 
 After configuring the gem, one can easily query all the available ERP resources from the connected third-parties.
 
 ```ruby
-$ ErpIntegration::Order.where(reference: 'MT1000SKX')
-=> #<ErpIntegration::Fulfil::Collection @items=[<ErpIntegration::Order @id=100 />] />
+$ ErpIntegration::SalesOrder.where(reference: 'MT1000SKX')
+=> #<ErpIntegration::Fulfil::Collection @items=[<ErpIntegration::SalesOrder @id=100 />] />
 ```
 
 By default, only the `id` will be added to the found ERP resources. However, one can use the `select` method to include more fields.
 
 ```ruby
-$ ErpIntegration::Order.select(:id, :reference).where(reference: 'MT1000SKX')
-=> #<ErpIntegration::Fulfil::Collection @items=[<ErpIntegration::Order @id=100 @reference=MT1000SKX />] />
+$ ErpIntegration::SalesOrder.select(:id, :reference).where(reference: 'MT1000SKX')
+=> #<ErpIntegration::Fulfil::Collection @items=[<ErpIntegration::SalesOrder @id=100 @reference=MT1000SKX />] />
 ```
 
 There are also other type of `where` queries available:
 - `where_like` for case sensitive queries.
 - `where_ilike` for case insensitive queries.