Apply suggestion from @eps1lon

Author: eps1lon

src/content/reference/react/Activity.md

@@ -48,7 +48,7 @@ In this way, Activity can be thought of as a mechanism for rendering "background
 #### Caveats {/*caveats*/}
 
 - If an Activity is rendered inside of a [ViewTransition](/reference/react/ViewTransition), and it becomes visible as a result of an update caused by [startTransition](/reference/react/startTransition), it will activate the ViewTransition's `enter` animation. If it becomes hidden, it will activate its `exit` animation.
-- If an Activity has a text node (plain text) as its child instead of an element, it won’t be rendered at all rather than hidden, because there’s no corresponding DOM node to apply visibility changes to.
+- An Activity that just renders text will not render anything rather than rendering hidden text, because there’s no corresponding DOM element to apply visibility changes to. For example, `<Activity mode="hidden"><ComponentThatJustReturnsText /></Activity>` will not produce any output in the DOM for `const ComponentThatJustReturnsText = () => "Hello, World!"`.
 
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