diff --git a/.DS_Store b/.DS_Store
index 381720a..3a1cd0e 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/02-containerized-environment/README.md b/02-containerized-environment/README.md
index 16e028e..8ca6f6a 100644
--- a/02-containerized-environment/README.md
+++ b/02-containerized-environment/README.md
@@ -121,7 +121,7 @@ Now, we'll create a `docker-compose.yml` file to orchestrate our services.
 1. In the `data-pipeline` folder, open the file named `docker-compose.yml` in your text editor.
 2. Add the following content to the `docker-compose.yml` file:
 
-    ```yaml
+  ```yaml
   version: '3'
   services:
     postgres: