docs(k8s): fix anchors

Author: bene2k1

pages/kubernetes/how-to/connect-cluster-kubectl.mdx

@@ -50,7 +50,7 @@ For detailed information about the configuration of IAM policies for your Kubern
       <TabsTab label="Using the Scaleway CLI">
          You can use the Scaleway CLI to automatically retrieve (and merge) your `kubeconfig` file, then interact with your Kubernetes cluster.
 
-         ### Install and configure the Scaleway CLI
+         #### Install and configure the Scaleway CLI
 
          If you have not set up the Scaleway CLI yet:
 
@@ -62,7 +62,7 @@ For detailed information about the configuration of IAM policies for your Kubern
             You will need your [API Key](/iam/how-to/create-api-keys/) (access key and secret key).
 
 
-         ### Retrieve and install the kubeconfig using scw
+         #### Retrieve and install the kubeconfig using scw
 
          1. Run the following command to install the `kubeconfig` file for your cluster:
             ```bash