Update use-cases/wordpress-k8s-mysql/README.md

Simplify wording according to remarks

Co-authored-by: Aurelie Vache <[email protected]>

Author: yomovh

use-cases/wordpress-k8s-mysql/README.md

@@ -11,7 +11,7 @@ We will divide the project into two layers. The first layer is used to deploy th
 ## Requirements
 
 You need the following:
-* [Terraform](https://www.terraform.io/) or [OpenTofu](https://opentofu.org/) installed. In the instructions below, we are using the former. If you use the latter, you will need to update the commands accordingly !
+* [Terraform](https://www.terraform.io/) or [OpenTofu](https://opentofu.org/) installed. In the instructions below, we use the first option. If you use the second, you will need to update the commands accordingly.
 * an [OVHcloud Public cloud project](https://www.ovhcloud.com/en/public-cloud/)
 * OVHcloud API credentials
     * [EU](https://www.ovh.com/auth/?onsuccess=https%3A%2F%2Fwww.ovh.com%2Fauth%2FcreateToken%2F%3F)