fix deploy

.gitea/workflows/demo.yaml

@@ -7,7 +7,7 @@ jobs:
     runs-on: synology
     steps:
       - run: docker pull linuxserver/bookstack
-      - run: docker stack bookstack deploy
+      - run: docker stack deploy bookstack
       - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
       - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
       - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."