docs: fix wrong default value

Fixes #24

README.md

@@ -376,7 +376,7 @@ Here are variables supported to configure review environments:
 | Name                     | description                            | default value     |
 | ------------------------ | -------------------------------------- | ----------------- |
 | `K8S_REVIEW_SPACE`       | k8s namespace for `review` env         | _none_ (disabled) |
-| `K8S_REVIEW_APP_NAME`    | application name for `review` env      | `"${K8S_BASE_APP_NAME}-${CI_COMMIT_REF_SLUG}"` |
+| `K8S_REVIEW_APP_NAME`    | application name for `review` env      | `"${K8S_BASE_APP_NAME}-${CI_ENVIRONMENT_SLUG}"` |
 | `K8S_REVIEW_ENVIRONMENT_URL`| The review environments url _(only define for static environment URLs declaration and if different from default)_ | `$K8S_ENVIRONMENT_URL` |
 | :lock: `K8S_REVIEW_KUBE_CONFIG` | Specific kubeconfig for `review` env _(only define if not using exploded kubeconfig parameters and if different from default)_ | `$K8S_DEFAULT_KUBE_CONFIG` |
 | `K8S_REVIEW_URL`         | Kubernetes API url for `review` env  _(only define if using exploded kubeconfig parameters and if different from default)_    | `$K8S_URL` |