Fixed sytax issue with service listing

docker-stacks/app-server/droneci.yml

@@ -1,4 +1,7 @@
-drone:
+version: '3.8'
+
+services:
+  drone:
     image: drone/drone:2
     container_name: drone
     ports:
@@ -10,7 +13,7 @@ drone:
       - DRONE_RPC_SECRET=${DRONE_RPC_SECRET}
       - DRONE_SERVER_HOST=${DRONE_SERVER_ADDRESS}
       - DRONE_SERVER_PROTO=${DRONE_SERVER_PROTO}
-      - DRONE_USER_CREATE="username:drone,admin:true"
+      - DRONE_USER_CREATE=username:drone,admin:true
     volumes:
       - drone-data:/data
     depends_on:
@@ -19,22 +22,22 @@ drone:
     networks:
       - droneci-network
 
-drone-runner:
-  image: drone/drone-runner-docker:1
-  container_name: drone-runner
-  environment:
-    - DRONE_RPC_PROTO=http
-    - DRONE_RPC_HOST=drone
-    - DRONE_RPC_SECRET=${DRONE_RPC_SECRET}
-    - DRONE_RUNNER_CAPACITY=2
-    - DRONE_RUNNER_NAME=local-runner
-  volumes:
-    - /var/run/docker.sock:/var/run/docker.sock
-  depends_on:
-    - drone
-  restart: unless-stopped
-  networks:
-    - droneci-network
+  drone-runner:
+    image: drone/drone-runner-docker:1
+    container_name: drone-runner
+    environment:
+      - DRONE_RPC_PROTO=http
+      - DRONE_RPC_HOST=drone
+      - DRONE_RPC_SECRET=${DRONE_RPC_SECRET}
+      - DRONE_RUNNER_CAPACITY=2
+      - DRONE_RUNNER_NAME=local-runner
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    depends_on:
+      - drone
+    restart: unless-stopped
+    networks:
+      - droneci-network
 
 volumes:
   drone-data: