doc: README.md

README.md

@@ -55,7 +55,7 @@ You can customize the job by overriding the following variables:
 
 | Name                    | Description                                                                            | Default                                           |
 |-------------------------|----------------------------------------------------------------------------------------|---------------------------------------------------|
-| `IMAGE_NAME`            | The name of the image. Should be "<org\|user>/\<repo>". Mandatory.                     | `""`                                              |
+| `IMAGE_NAME`            | **Mandatory** The name of the image. Should be "<org\|user>/\<repo>".                  | `""`                                              |
 | `PACKAGE_INDEX_API_URL` | The URL of the API to retrieve the package index.                                      | `https://pypi.org/pypi`                           |
 | `PACKAGE_NAME`          | The name of the package.                                                               | `"$CI_PROJECT_NAME"`                              |
 | `REPOSITORIES_API_URL`  | The URL of the API to retrieve the repositories.                                       | `https://registry.hub.docker.com/v2/repositories` |