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Co-authored-by: deboragracio <63159404+deboragracio@users.noreply.github.com>

Author: MaximilianFT

HOWTO_01_Payment_csharp/README.MD

@@ -30,7 +30,7 @@ In all of these cases, the solution is to resend the original request using the
 
 In many payment vendor apps, it is possible to add a tip to the payment amount.
 **Example flow in a restaurant:**
-- Guest asks for the bill
+1. The guest asks for the bill.
 - Waiter triggers to create the bill at the POS (e.g. mobile device)
 - The POS on the mobile device pushes the amount (for example 10€) to be paid to the configured payment app (via POS System API and the fiskaltrust InStore App)
 - The payment app opens and the waiter hands the mobile device over to the guest