anchor.diff:  docker-compose run --rm tests
   ```
   
  -## Add a readme
  +### Add a readme
   
   Next we'll add a `README.md` file to introduce the plugin to the world:
   
  
positive.code: 
  <%= render 'plugins/tutorial_readme' %>
  
  ## Add the linter
  
  The [Buildkite Plugin Linter](https://github.com/buildkite-plugins/buildkite-plugin-linter) helps ensure your plugin is up-to-date, and has all the required files to be listed in the plugin directory.
  
  
negative.code: docker-compose run --rm linter
  ```
  
  ### Publish to the directory
  
  To add your plugin to the [Buildkite Plugin Directory](https://buildkite.com/plugins), publish your repository to a public GitHub repository and add the `buildkite-plugin` repository topic tag. For full instructions, see the [Plugin Directory documentation](/docs/plugins/directory).
  
  ## Plugin schema
  
  Each plugin must have a `plugin.yml` file, which describes the plugin, what it requires, and what configuration options it accepts.
  
  