Update main.yml

Author: HsiangNianian

.github/workflows/main.yml

@@ -38,3 +38,5 @@ jobs:
           # You can swap them out with your own user credentials.
           user_name: github-actions[bot]
           user_email: 41898282+github-actions[bot]@users.noreply.github.com
+      - name: url
+        run: echo "retrofor.space" > CNAME