Refactor .drone.yml a little

.drone.yml

@@ -11,15 +11,16 @@ steps:
   
   - name: docker
     image: plugins/docker
-    repo: docker.data.coop/cryptohagen-website
-    registry: docker.data.coop
-    username:
-      from_secret: DOCKER_USERNAME
-    password:
-      from_secret: DOCKER_PASSWORD
-    tag: 
-      - "${DRONE_BUILD_NUMBER}"
-      - "latest"
+    settings:
+      repo: docker.data.coop/cryptohagen-website
+      registry: docker.data.coop
+      username:
+        from_secret: DOCKER_USERNAME
+      password:
+        from_secret: DOCKER_PASSWORD
+      tags:
+        - "${DRONE_BUILD_NUMBER}"
+        - "latest"
     when:
       branch:
         - master