Stumbled across BE "behaviour" and replaced it

One sentence above the alert box, the AE version was used, therefore I changed this one

Author: GeniusTimo

docs/reference.mdx

@@ -415,7 +415,7 @@ The `attachments` JSON parameter includes all files that will be appended to the
 
 ###### Example Request Bodies (multipart/form-data)
 
-Note that these examples are small sections of an HTTP request to demonstrate behaviour of this endpoint - client libraries will set their own form boundaries (`boundary` is just an example). For more information, refer to the [multipart/form-data spec](https://tools.ietf.org/html/rfc7578#section-4).
+Note that these examples are small sections of an HTTP request to demonstrate behavior of this endpoint - client libraries will set their own form boundaries (`boundary` is just an example). For more information, refer to the [multipart/form-data spec](https://tools.ietf.org/html/rfc7578#section-4).
 
 This example demonstrates usage of the endpoint *without* `payload_json`.
 

docs/resources/message.md

@@ -313,7 +313,7 @@ Information about the call in a private channel.
 | guild_id?           | snowflake | id of the originating message's guild                                                                                                   |
 | fail_if_not_exists? | boolean   | when sending, whether to error if the referenced message doesn't exist instead of sending as a normal (non-reply) message, default true |
 
-\* If `type` is unset, `DEFAULT` can be assumed in order to match the behaviour before message reference had types.
+\* If `type` is unset, `DEFAULT` can be assumed in order to match the behavior before message reference had types.
 In future API versions this will become a required field.
 
 \*\* `channel_id` is optional when creating a reply, but will always be present when receiving an event/response that includes this data model. **Required for forwards.**

docs/topics/voice-connections.mdx

@@ -9,7 +9,7 @@ To ensure that you have the most up-to-date information, please use [version 8](
 Previously if the version query string `v` was omitted the voice gateway would default to version 1. That behavior is being deprecated, in the future you must present a voice gateway version or your voice connection will be rejected.
 
 :::warn
-Versions below 4 as well as the default version behaviour will be discontinued as of November 18th, 2024. Connections without a version or with a version less than version 4 will be rejected as of this date.
+Versions below 4 as well as the default version behavior will be discontinued as of November 18th, 2024. Connections without a version or with a version less than version 4 will be rejected as of this date.
 :::
 
 ###### Gateway Versions