Merge pull request #28860 from y-yagi/add_form_with_generates_remote_forms_to_configuring_guide

Add `form_with_generates_remote_forms` to configuring guide [ci skip]

guides/source/configuring.md

@@ -543,6 +543,8 @@ encrypted cookies salt value. Defaults to `'signed encrypted cookie'`.
 
 * `config.action_view.debug_missing_translation` determines whether to wrap the missing translations key in a `<span>` tag or not. This defaults to `true`.
 
+* `config.form_with_generates_remote_forms` determines whether `form_with` generates remote forms or not. This defaults to `true`.
+
 ### Configuring Action Mailer
 
 There are a number of settings available on `config.action_mailer`: