Fixes to edit review

03_how_ln_works.asciidoc

@@ -531,7 +531,7 @@ Onion routing will be examined in detail in <<onion_routing>>.
 
 ==== Payment Forwarding Algorithm
 
-Once the sender of payment finds a possible path across the network and constructs an onion, the payment is forwarded by each node in the path, processing one layer of the onion at each hop.
+Once the sender of a payment finds a possible path across the network and constructs an onion, the payment is forwarded by each node in the path. Each node processes one layer of the onion and forwards it to the next node in the path.
 
 Each intermediary node receives a Lightning Message called `update_add_htlc` with a payment hash and an onion. The intermediary node executes a series of steps, called the _payment forwarding algorithm_: