Merge pull request #445 from robbix1206/webhookEditChannelID

BREAKING CHANGE - Add ChannelID to WebhookEdit (#434)

restapi.go

@@ -1907,12 +1907,13 @@ func (s *Session) WebhookWithToken(webhookID, token string) (st *Webhook, err er
 // webhookID: The ID of a webhook.
 // name     : The name of the webhook.
 // avatar   : The avatar of the webhook.
-func (s *Session) WebhookEdit(webhookID, name, avatar string) (st *Role, err error) {
+func (s *Session) WebhookEdit(webhookID, name, avatar, channelID string) (st *Role, err error) {
 
 	data := struct {
-		Name   string `json:"name,omitempty"`
-		Avatar string `json:"avatar,omitempty"`
-	}{name, avatar}
+		Name      string `json:"name,omitempty"`
+		Avatar    string `json:"avatar,omitempty"`
+		ChannelID string `json:"channel_id,omitempty"`
+	}{name, avatar, channelID}
 
 	body, err := s.RequestWithBucketID("PATCH", EndpointWebhook(webhookID), data, EndpointWebhooks)
 	if err != nil {