Merge pull request #227 from HugoDoyon/patch-13

payment instead of payement

ch03.asciidoc

@@ -320,7 +320,7 @@ Hence, we do not recommend to attempt to cheat. We do, however, recommend that a
 === Invoices
 
 Every payment on the Lightning Network starts with a person who wants to receive bitcoins issuing an invoice.
-The main reason for this process is that it helps to make the payment process over a path of payement channels atomic.
+The main reason for this process is that it helps to make the payment process over a path of payment channels atomic.
 Atomic means that no node on the path can decide to take the money that is being routed and stop the routing process.
 The payment will either be transferred successfully through the path of nodes or will not be delivered.
 There are no such things as a partial payment or a half successful payment.