Update docs/detections/detections-req.asciidoc

Author: nastasha-solomon

docs/detections/detections-req.asciidoc

@@ -28,7 +28,7 @@ of at least 32 characters. For example:
 * In the `elasticsearch.yml` {ref}/settings.html[configuration] file: 
 
 ** Set the `xpack.security.enabled` setting to `true`. For more information, refer to {ref}/security-settings.html[general security settings in {es}].
-** If the `search.allow_expensive_queries` setting is set to `false`, remove it. If set to its default value of `true` or not included in the file, you don't need to change it. This setting must be `true`, for key detection features, such as {kibana-ref}/alerting-getting-started.html#_rules[alerting rules] and rule exceptions, to work.
+** If the `search.allow_expensive_queries` setting is set to `false`, remove it. If set to its default value of `true` or not included in the file, you don't need to change it. This setting must be `true` for key detection features, such as {kibana-ref}/alerting-getting-started.html#_rules[alerting rules] and rule exceptions, to work.
 
 
 IMPORTANT: After changing the `xpack.encryptedSavedObjects.encryptionKey` value