docs: fix typo in filter name

docs/references/controller_filters.md

@@ -29,7 +29,7 @@ $aliases = [
 |-------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | session     | Restricts access to users who are not authenticated by the `Session` authenticator.                                                                                                                                                 |
 | tokens      | Restricts access to users who are not authenticated by the `AccessTokens` authenticator.                                                                                                                                            |
-| chained     | The filter will check authenticators in sequence to see if the user is logged in through either of authenticators, allowing a single API endpoint to work for both an SPA using session auth, and a mobile app using access tokens. |
+| chain       | The filter will check authenticators in sequence to see if the user is logged in through either of authenticators, allowing a single API endpoint to work for both an SPA using session auth, and a mobile app using access tokens. |
 | jwt         | Restricts access to users who are not authenticated by the `JWT` authenticator. See [JWT Authentication](../addons/jwt.md).                                                                                                         |
 | hmac        | Restricts access to users who are not authenticated by the `HMAC` authenticator. See [HMAC Authentication](../guides/api_hmac_keys.md).                                                                                                                    |
 | auth-rates  | Provides a good basis for rate limiting of auth-related routes.                                                                                                                                                                     |