fix upload-pages-artfact path

Author: dskvr

.github/workflows/static.yml

@@ -54,7 +54,7 @@ jobs:
       - name: Upload Pages Artifact
         uses: actions/upload-pages-artifact@v3
         with:
-          path: 'demo'
+          path: 'demos/vanilla-js-demo/src'
 
       - name: Deploy to GitHub Pages
         id: deployment