Update README.md

Signed-off-by: Ritwik G <100672805+ritwik-g@users.noreply.github.com>

Author: ritwik-g

README.md

@@ -89,6 +89,21 @@ helm values-manager generate --deployment dev --output ./dev
 # Generate prod values
 helm values-manager generate --deployment prod --output ./prod
 ```
+This will create environment-specific values files:
+
+`dev/dev.my-app.values.yaml`:
+```yaml
+app:
+  logLevel: debug
+  replicas: '1'
+```
+
+`prod/prod.my-app.values.yaml`:
+```yaml
+app:
+  logLevel: info
+  replicas: '3'
+```
 
 6. View available commands and options: