Add cname to website

Author: yannh

.github/workflows/site.yml

@@ -24,4 +24,5 @@ jobs:
         if: github.ref == 'refs/heads/master'
         with:
           publish_dir: ./site/public
-          github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          cname: kubeconform.mandragor.org