(Azurecxp) fixes MicrosoftDocs/azure-docs#43606

Added solver

Author: jakaruna-MSFT

articles/aks/ingress-static-ip.md

@@ -159,7 +159,10 @@ spec:
     email: [email protected]
     privateKeySecretRef:
       name: letsencrypt-staging
-    http01: {}
+    solvers:
+    - http01:
+        ingress:
+          class: nginx
 ```
 
 To create the issuer, use the `kubectl apply -f cluster-issuer.yaml` command.