Rephrase cross-currency payment prerequisites

Fix a subject/verb agreement typo and simplify some language overall

content/concepts/complex-payment-types/cross-currency-payments.md

@@ -9,8 +9,8 @@ By default, cross-currency payments deliver a fixed amount to their destination
 
 - By definition, a cross-currency payment involves at least two currencies, which means that at least one currency involved must be a non-XRP issued currency.
     - Typically, this means using one or more currencies issued by an [XRP Ledger Gateway](become-an-xrp-ledger-gateway.html). Such currencies are backed by funds outside the XRP Ledger, and can be withdrawn through the gateway.
-    - You could also use digital tokens that are only issued within the XRP Ledger and has no outside backing, as long as the parties transacting are willing to send or receive those tokens and treat them as something of value.
-- There must be at least one [Path](paths.html) between the sender and receiver, and the total liquidity across all paths must be enough to facilitate the payment. For cross-currency payments, this usually means consuming [Offers](offers.html) to convert from one currency to another.
+    - Issued currencies can also be digital tokens that are only issued within the XRP Ledger, with no outside backing. Of course, the parties involved must be willing to send or receive those tokens and treat them as something of value.
+- There must be at least one [Path](paths.html) between the sender and receiver, and the total liquidity across all paths must be enough to facilitate the payment. Cross-currency payments convert from one currency to another by consuming [Offers](offers.html) in the XRP Ledger's decentralized exchange
 
 
 ## Autobridging