f note additional constant use

Author: TheBlueMatt

lightning/src/ln/peer_handler.rs

@@ -236,6 +236,8 @@ enum InitSyncTracker{
 
 /// When the outbound buffer has this many messages, we'll stop reading bytes from the peer until
 /// we manage to send messages until we reach this limit.
+/// We also use this as the target number of outbound gossip messages to keep in the write buffer,
+/// refilled as we send bytes.
 const OUTBOUND_BUFFER_LIMIT_READ_PAUSE: usize = 10;
 /// When the outbound buffer has this many messages, we'll simply skip relaying gossip messages to
 /// the peer.