minor adjustment

docs/src/content/docs/book/send.mdx

@@ -153,6 +153,7 @@ Read more about all message sending functions in the Reference:
 * [`self.reply(){:tact}`](/ref/core-base#self-reply)
 * [`self.forward(){:tact}`](/ref/core-base#self-forward)
 * [`nativeSendMessage(){:tact}`](/ref/core-advanced#nativesendmessage)
+* [`nativeSendMessageReturnForwardFee(){:tact}`](/ref/core-advanced#nativesendmessagereturnforwardfee)
 
 [p]: /book/types#primitive-types
 [int]: /book/integers