Fix style for AKS Web app

Author: aamini7

scenarios/CreateAKSWebApp/create-aks-webapp.md

@@ -486,18 +486,18 @@ Cert-manager provides Helm charts as a first-class method of installation on Kub
 
    ```bash
    helm repo add jetstack https://charts.jetstack.io
+   helm repo update
+   helm install cert-manager jetstack/cert-manager --namespace cert-manager --version v1.7.0
    ```
 
 2. Update local Helm Chart repository cache
 
    ```bash
-   helm repo update
    ```
 
 3. Install Cert-Manager addon via helm by running the following:
 
    ```bash
-   helm install cert-manager jetstack/cert-manager --namespace cert-manager --version v1.7.0
    ```
 
 4. Apply Certificate Issuer YAML File
@@ -538,9 +538,6 @@ Cert-manager provides Helm charts as a first-class method of installation on Kub
                 nodeSelector:
                   "kubernetes.io/os": linux
     EOF
-    ```
-
-    ```bash
     cluster_issuer_variables=$(<cluster-issuer-prod.yml)
     ```