[examples/openspending][lg] - adding drd support (#928)

* [examples/openspending][lg] - adding drd support

* [examples/openspending][sm] - add data stories to header

examples/openspending/pages/[...slug].tsx

@@ -53,6 +53,7 @@ export async function getStaticPaths() {
 
   const paths = allDocuments
     .filter((page) => page.metadata?.isDraft !== true)
+    .filter((page) => !page.file_path.startsWith('content/stories/'))
     .map((page) => {
       const parts = page.url_path!.split('/');
       return { params: { slug: parts } };