doc: improve wording for peering config

Co-authored-by: Will <will.scott@protocol.ai>

config/peering.go

@@ -4,6 +4,6 @@ import "github.com/libp2p/go-libp2p-core/peer"
 
 // Peering configures the peering service.
 type Peering struct {
-	// Peer lists all peers with which this peer peers.
+	// Peers lists the nodes to attempt to stay connected with.
 	Peers []peer.AddrInfo
 }