Update README.md

Arun-Rocker · web-flow · commit 550eac738153 · 2025-05-04T20:10:39.000+05:30
diff --git a/Day-05/README.md b/Day-05/README.md
@@ -8,10 +8,10 @@ using below command we should export env variable to linux/mac
 export DB_HOST="localhost"
 ```
 
-
+In the code we call env variable by using `os.getenv`
+```
 import os
 
 ## ** Simple get with optional default **
-```
 api_key = os.getenv('API_KEY', 'default-key')
 ```
