Fixed 2 translations about the taxes

Author: luca-alsina

resources/lang/fr/invoice.php

@@ -25,8 +25,8 @@
     'sub_total'              => 'Sous-total',
     'total_discount'         => 'Remise totale',
     'taxable_amount'         => 'Montant taxable',
-    'total_taxes'            => 'Taxes totales',
-    'tax_rate'               => 'Taux de taxe',
+    'total_taxes'            => 'Montant total de la TVA',
+    'tax_rate'               => 'Taux de TVA',
     'total_amount'           => 'Montant total',
     'pay_until'              => 'Veuillez payer avant le',
     'amount_in_words'        => 'Montant en lettres',