Use proper yaml grammar

.circleci/config.yml

@@ -167,10 +167,12 @@ jobs:
       - run:
           name: Copy build artefacts from build_frontend into this folder
           command: mv /home/circleci/project/frontend/out /dockerflow/frontend/
+
       - run:
           name: Copy email tracker lists into this folder
-          command: cp /home/circleci/project/emails/tracker_lists/level-one-trackers.json /dockerflow/emails/tracker_lists/
-          command: cp /home/circleci/project/emails/tracker_lists/level-two-trackers.json /dockerflow/emails/tracker_lists/
+          command: |
+            cp /home/circleci/project/emails/tracker_lists/level-one-trackers.json /dockerflow/emails/tracker_lists/
+            cp /home/circleci/project/emails/tracker_lists/level-two-trackers.json /dockerflow/emails/tracker_lists/
 
       - run:
           name: Create a version.json