fixed small bug in doc report sample templates (#9415)

* Add part full name to supplier part table

* Add context variables for sales order report to the docs

* Added more context variables on orders to the docs

* fixed small bug in doc report sample templates

docs/docs/report/samples.md

@@ -33,7 +33,7 @@ The following report templates are provided "out of the box" and can be used as
 
 ### Purchase Order
 
-{{ templatefile("report/inventree_bill_of_materials_report.html") }}
+{{ templatefile("report/inventree_purchase_order_report.html") }}
 
 ### Return Order