fix typo in buy ticket

src/pages/en/buy-tickets.mdx

@@ -71,7 +71,7 @@ export const metadata = {
       </div>
 
       <div className="my-4">
-        - Commercial invoice orders in the name of a company or institution, will be generated after the event. If you need to send us an email to register@foss4g.org, with the order number and the data to whom we make the fiscal note.
+        - Commercial invoice orders in the name of a company or institution, will be generated after the event. If you need to send us an email to register@foss4g.org, with the order number and the data to whom we make the commercial invoice.
         - If you need a ticket or invoice, we will send you the voucher generated by the system.
         - If you are from a public organism and you need a previous invoicing, to be able to make the purchase, please write to register@foss4g.org. We ask for your patience, we have delays for these procedures.
       </div>