Fix indention

Signed-off-by: Taylor Silva <tsilva@pivotal.io>

pipelines/hello-world.yml

@@ -11,4 +11,4 @@ jobs:
         source: { repository: busybox }
       run:
         path: echo
-        args: ["Hello, world!"]
+        args: ["Hello world!"]

pipelines/pipeline-vars.yml

@@ -15,7 +15,7 @@ jobs:
 - name: level-((number))-job
   public: true
   plan:
-- task: simple-task
+  - task: simple-task
       config:
         platform: linux
         image_resource:

tasks/hello-world.yml

@@ -6,4 +6,4 @@ image_resource:
 
 run:
   path: echo
-  args: ["Hello, world!"]
+  args: ["Hello world!"]