Update '.drone.yml'

.drone.yml

@@ -5,27 +5,27 @@ name: default
 
 steps:
 
-- name: docker
-  image: plugins/docker
-  settings:
-    repo: bunix42/pre-commit
-    username:
-      from_secret: docker_username
-    password:
-      from_secret: docker_password
-    tags:
-      - latest
+  - name: docker
+    image: plugins/docker
+    settings:
+      repo: bunix42/pre-commit
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+      tags:
+        - latest
 
-- name: slack
-  image: plugins/slack
-  settings:
-    webhook:
-      from_secret: slack_webhook
-    channel: drone
-    username: drone
+  - name: slack
+    image: plugins/slack
+    settings:
+      webhook:
+        from_secret: slack_webhook
+      channel: drone
+      username: drone
 
 trigger:
   branch:
     - master
   event:
-    - push
+    - push