Fix Ingress creation step formatting

Author: JamesJBarnett

articles/application-gateway/for-containers/how-to-cert-manager-lets-encrypt-ingress-api.md

@@ -159,7 +159,7 @@ The status should show `True` and type `Ready` under conditions.
 
 # [ALB managed deployment](#tab/alb-managed)
 
-1. Create an Ingress
+Create an Ingress
 
 ```bash
 kubectl apply -f - <<EOF