f Slightly adjust field docs

Author: tnull

src/payment/store.rs

@@ -365,7 +365,7 @@ pub enum PaymentKind {
 		preimage: Option<PaymentPreimage>,
 		/// The secret used by the payment.
 		secret: Option<PaymentSecret>,
-		/// The value, in thousands of a satoshi, that was deducted off of this payment as an extra
+		/// The value, in thousands of a satoshi, that was deducted from this payment as an extra
 		/// fee taken by our channel counterparty.
 		///
 		/// Will only be `Some` once we received the payment. Will always be `None` for LDK Node