adding author id to message struct

command.go

@@ -17,6 +17,7 @@ type Payload func(msg Message) (string, error)
 // message information passed to payload function
 type Message struct {
 	Author  string   //username of message author
+	ID      string   //discord ID of message author
 	Words   []string //words from message split on whitespace
 	Content string   //entire message content
 	Channel string   //message channel