tpl/invoice-en.slim in polish_invoicer-0.0.16 vs tpl/invoice-en.slim in polish_invoicer-0.0.17

@@ -62,12 +62,12 @@
             em Payment deadline:
         .col-xs-3
           = payment_date
       .row
         .col-xs-3
-          | Wykonanie usługi:
+          | Data sprzedaży:
           .small
-            em Date of service:
+            em Date of sale:
         .col-xs-3
           = trade_date
         .col-xs-3
           | Sposób zapłaty:
           .small