doc: add note about wildcard certs
diff --git a/roles/openstack_helm_ingress/README.md b/roles/openstack_helm_ingress/README.md
index 67d3329..5a79ef3 100644
--- a/roles/openstack_helm_ingress/README.md
+++ b/roles/openstack_helm_ingress/README.md
@@ -7,18 +7,24 @@
1. Create a Kubernetes TLS secret using your wildcard certificate, you can refer
to the [Kubernetes documentation](https://kubernetes.io/docs/concepts/configuration/secret/#tls-secrets)
- for more details.
+ for more details.
- ```shell
- kubectl -n openstack create secret tls wildcard-certs --key=/path/to/tls.key --cert=/path/to/tls.crt
- ```
+ ```shell
+ kubectl -n openstack create secret tls wildcard-certs --key=/path/to/tls.key --cert=/path/to/tls.crt
+ ```
+
+ > **Note**
+ >
+ > If you have a certificate that needs to be combined with an intermediate
+ > certificate, you can combine them all to a single file with the certificate
+ > first, followed by the intermediate certificate, followed by the root.
2. Update the `openstack_helm_ingress_secret_name` to point towards the name
of the secret you created in step 1.
- ```yaml
- openstack_helm_ingress_secret_name: wildcard-certs
- ```
+ ```yaml
+ openstack_helm_ingress_secret_name: wildcard-certs
+ ```
> **Note**
>