Add insured amount

modules/purchase_trade/docs/template-properties.md

@@ -319,8 +319,11 @@ Source code: `modules/purchase_trade/stock.py`
 
 Usage typique:
 - templates shipment relies a l'assurance
+- `report_insurance_amount`: montant affiche dans `Amount insured` (priorite a
+  `110%` du total incoming, fallback fee `Insurance`)
 - `report_insurance_incoming_amount`: somme `incoming_moves` de
-  `quantity * unit_price`
+  `quantity * unit_price`, avec fallback lot
+  (`lot.line.unit_price * lot.get_current_quantity_converted()`)
 - `report_insurance_amount_insured`: `110%` de
   `report_insurance_incoming_amount`
 - base de travail pour un certificat d'assurance lie a un shipment