docs: add Cloudflare Docs to showcase (#2221)

Co-authored-by: Chris Swithinbank <[email protected]>

Author: KianNH

docs/src/assets/showcase/developers.cloudflare.com.png

@@ -163,4 +163,9 @@ import FluidGrid from './fluid-grid.astro';
 		href="https://pokemon-siace.netlify.app/"
 		thumbnail="pokemon-siace.netlify.app.png"
 	/>
+	<Card
+		title="Cloudflare Docs"
+		href="https://developers.cloudflare.com/"
+		thumbnail="developers.cloudflare.com.png"
+	/>
 </FluidGrid>