add --build to README.md

README.md

@@ -22,7 +22,7 @@ Note: We have disabled HADOLINT for now as we are getting an error: `qemu: uncau
 The CI Pipeline uses the `test` target from the Dockerfile to run the tests. You can run it locally with the following command:
 
 ```bash
-docker compose -f docker-compose.test.yml up --exit-code-from app
+docker compose -f docker-compose.test.yml up --exit-code-from app --build
 ```
 
 Note: This will create a /coverage folder where you can review the coverage details.