typo

Author: amingilani

bip-0070.mediawiki

@@ -188,7 +188,7 @@ Accept: application/bitcoin-paymentack
 
 When the merchant's server receives the Payment message, it must
 determine whether or not the transactions satisfy conditions of
-payment. If and only if they do, if should broadcast the
+payment. If and only if they do, it should broadcast the
 transaction(s) on the Bitcoin p2p network.
 
 Payment messages larger than 50,000 bytes should be rejected by