f clarify highest, not lowest

Author: TheBlueMatt

lightning/src/chain/chaininterface.rs

@@ -49,7 +49,7 @@ pub trait BroadcasterInterface {
 /// estimation.
 #[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
 pub enum ConfirmationTarget {
-	/// The most conservative feerate estimate available.
+	/// The most conservative (i.e. highest) feerate estimate available.
 	///
 	/// This is use to sanity-check our counterparty's feerates and should be as conservative as
 	/// possible to ensure that we don't confuse a peer using a very conservative estimator for one