Update blank.yml

.github/workflows/blank.yml

@@ -28,6 +28,8 @@ jobs:
          pylode -o application/index.html -i application.ttl
          mv application.ttl application/
          pylode -o index.html -i index.ttl
+         mkdir core
+         cp index.ttl index.html core/
          mkdir co
          pylode -o co/index.html -i co.ttl
          mv co.ttl co/