Mention the eulerian guide in the consent management utils

Author: garronej

stories/ConsentManagement.stories.tsx

@@ -18,6 +18,12 @@ const { meta, getStory } = getStoryFactory({
 
 \`src/consentManagement.tsx\` (This is a file you should create in your project)  
 
+Refer to [this section of the Guides](https://react-dsfr.etalab.studio/analytics) to see how to setup the the 
+mandated solution for analytics in your project.  
+  
+You can find a complete example setup in [the Demo repo for Next.js App Router](https://github.com/garronej/react-dsfr-next-appdir-demo/blob/main/ui/consentManagement.tsx) 
+which is live [here](https://next-demo.react-dsfr.fr/). You should be able to easily adapt it to other meta frameworks (Vite, Next Pages Router, CRA).
+  
 \`\`\`tsx
 "use client";