Update docs/detections/rules-ui-create.asciidoc

Co-authored-by: Ryland Herrick <[email protected]>

docs/detections/rules-ui-create.asciidoc

@@ -48,7 +48,7 @@ NOTE: If a required job isn't currently running, it will automatically start whe
 +
 . preview:[] (Optional, https://www.elastic.co/pricing[Platinum or higher subscription] required) Use *Suppress alerts by* to reduce the number of repeated or duplicate alerts created by the rule. Refer to <<alert-suppression>> for more information.
 +
-NOTE: Because {ml} rules generate alerts from anomalies, alert documents don't contain source event fields and you can only use anomaly fields when configuring alert suppression.
+NOTE: Because {ml} rules generate alerts from anomalies, which don't contain source event fields, you can only use anomaly fields when configuring alert suppression.
 +
 
 ////