update readme

README.md

@@ -44,6 +44,10 @@ The React method will react to the command message by adding the requested emoji
 func (m *Message) Respond(res string) error
 ```
 The Respond method will send the value of <b>res</b> in response to the command message.
+```go
+func Delete() error
+```
+The Delete method will delete the message from the text channel
 
 ### Example
 ```go