Update prebuilt-rules-management.asciidoc

docs/detections/prebuilt-rules-management.asciidoc

@@ -101,7 +101,7 @@ image::images/prebuilt-rules-update.png[The Rule Updates tab on the Rules page]
 
 . (Optional) To examine the details of a rule's latest version before you update it, select the rule name. This opens the rule details flyout.
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-The *Updates* tab displays a side-by-side JSON comparison of the rule's *Base version* (what you currently have installed) and the *Update* version that you can choose to install. Deleted characters are highlighted in red; added characters are highlighted in green.
+Select the *Updates* tab to view rule changes field by field, or the *JSON view* tab to view rule changes in JSON format. Both tabs display side-by-side comparisons of the *Current rule* (what you currently have installed) and the *Elastic update* version (what you can choose to install). Deleted characters are highlighted in red; added characters are highlighted in green.
 +
 To accept the changes and install the updated version, select *Update*.
 +