docs: update demo slides

src/slides/DynamicComponents.astro

@@ -23,20 +23,10 @@ import Slide from "../components/Slide.astro";
 	</p>
 </Slide>
 
-<Slide>
-	<p>Open your devtools, go to the Network tab and reload the page.</p>
-	<p class="fragment">
-		The 24kB of javascript you see is nothing more than the <a
-			href="https://bundlephobia.com/package/[email protected]">reveal.js</a
-		> package.
-	</p>
-	<p class="fragment">Now keep your devtools open and go to the next slide.</p>
-</Slide>
-
 <Slide>
 	<p>
-		You just downloaded React and Framer Motion to hydrate this interactive
-		component.
+		This is a demo of a slide using React and Framer Motion to hydrate this
+		interactive component.
 	</p>
 	<p>
 		<small>Try to drag & drop to reorder the items.</small>