docs: add .Message.ApplicationID

See botlabs-gg/yagpdb#1747

Signed-off-by: Luca Zeuch <[email protected]>

Author: l-zeuch

content/docs/reference/templates/syntax-and-data.md

@@ -232,6 +232,7 @@ Interaction functions are covered [here](/docs/reference/templates/functions#int
 | **Field**                            | **Description**                                                                                                                                                                                                                                                          |
 | ------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
 | .Message.Activity                    | Represents the activity sent with a message, such as a game invite, of type _\*discordgo.MessageActivity_. Sent with Rich Presence-related chat embeds.                                                                                                                  |
+| .Message.ApplicationID               | If the message is an interaction- or application-owned webhook, this is the ID of that application.                                                                                                                                                                      |
 | .Message.Attachments                 | Attachments of this message (_slice_ of [attachment](https://discord.com/developers/docs/resources/channel#attachment-object) objects).                                                                                                                                  |
 | .Message.Author                      | Author of the message ([User](#user) object).                                                                                                                                                                                                                            |
 | .Message.ChannelID                   | Channel ID this message is in.                                                                                                                                                                                                                                           |