Update packages/react-core/src/components/ExpandableSection/examples/ExpandableSectionWithHeading.tsx

Co-authored-by: Eric Olkowski <70952936+thatblindgeye@users.noreply.github.com>

Author: gitdallas

packages/react-core/src/components/ExpandableSection/examples/ExpandableSectionWithHeading.tsx

@@ -44,7 +44,7 @@ export const ExpandableSectionWithHeading = () => {
       </StackItem>
 
       <StackItem>
-        <h2>Detached Variant with Heading</h2>
+        <h4>Detached Variant with Heading</h4>
         <p>You can also use the detached variant with heading semantics:</p>
 
         <ExpandableSectionToggle