anchor.diff:  
   ```yml
   steps:
  -  - label: Example Test
  +  - label: "Example Test"
       command: echo "Hello!"
   ```
   
  
positive.code: 
  ```yaml
  steps:
    - label: '\:hammer\: Tests'
      command: 'scripts/tests.sh'
      env:
        BUILDKITE_DOCKER_COMPOSE_CONTAINER: app
  
    - wait
  
    - label: '\:package\: Package'
      command: 'scripts/build-binaries.sh'
      artifact_paths: 'pkg/*'
      env:
        BUILDKITE_DOCKER_COMPOSE_CONTAINER: app
  
    - wait
  
    - label: '\:debian\: Publish'
      command: 'scripts/build-debian-packages.sh'
      artifact_paths: 'deb/**/*'
      branches: 'master'
      agents:
        queue: 'deploy'
  
    - block: '\:shipit\: Release'
      branches: 'master'
  
    - label: '\:github\: Release'
      command: 'scripts/build-github-release.sh'
      artifact_paths: 'releases/**/*'
      branches: 'master'
  
    - wait
  
    - label: '\:whale\: Update images'
      command: 'scripts/release-docker.sh'
      branches: 'master'
      agents:
        queue: 'deploy'
  ```
  
  ## Step types
  
negative.code: ```bash
  steps:
    - command: .buildkite/pipeline.sh | buildkite-agent pipeline upload
      label: "\:pipeline\: Upload"
    - wait
    - command: "other-script.sh"
      label: "Run other operations"
  ```
  
  ## Migrating existing steps to a pipeline.yml
  