edit readme

console.go

@@ -277,7 +277,7 @@ func sender(conn *net.TCPConn, exit chan string, receive chan int, sstop chan st
 	if strings.HasPrefix(inp, ":help") {
 		fmt.Println("use :download FILENAME to download")
 		fmt.Println("use :upload LOCAL REMOTE to upload")
-		fmt.Println("use :exit to hung up session")
+		fmt.Println("use :exit to close session")
 		fmt.Println("use :getsystem to get Local Privilege Escalation")
 		fmt.Println("use :flush to flush receive buffer(Use only when input and output are inconsistent)")
 		fmt.Print(env1.username + " > ")