Added react pdf link

Author: D-K-P

docs/guides/examples/react-pdf.mdx

@@ -6,7 +6,7 @@ description: "This example will show you how to generate a PDF using Trigger.dev
 
 ## Overview
 
-This example demonstrates how to use Trigger.dev to generate a PDF using `react-pdf` and save it to Cloudflare R2.
+This example demonstrates how to use Trigger.dev to generate a PDF using [react-pdf](https://react-pdf.org/) and save it to Cloudflare R2.
 
 ## Task code