Update setup-with-docker.md

Author: mjhea0

{{cookiecutter.app_slug}}/setup-with-docker.md

@@ -12,7 +12,11 @@ Update the environment variables in *docker-compose.yml*, and then build the ima
 $ docker-compose up -d --build
 ```
 
-by default the app is set to use the production configuration, if you would like to use the development configuration you should alter the APP_SETTINGS environment variable.
+By default the app is set to use the production configuration. If you would like to use the development configuration, you can alter the `APP_SETTINGS` environment variable:
+
+```
+APP_SETTINGS="project.server.config.DevelopmentConfig"
+```
 
 
 Create the database: