fix(kapsule): wrong indentation on istio proxy protocol demo

Small indentation issues on the k8s resources.

Author: dulacp

tutorials/deploy-istio-kapsule-proxy-protocol/index.mdx

@@ -214,8 +214,8 @@ kubectl annotate -n istio-system services istio-ingressgateway \
       namespace: istio-system
     spec:
       workloadSelector:
-          labels:
-            istio: ingressgateway
+        labels:
+          istio: ingressgateway
       configPatches:
       - applyTo: LISTENER
         patch:
@@ -283,15 +283,15 @@ kubectl annotate -n istio-system services istio-ingressgateway \
             filterChain:
               filter:
                 name: envoy.filters.network.http_connection_manager
-          patch:
-            operation: MERGE
-            value:
-              name: envoy.filters.network.http_connection_manager
-              typed_config:
-                "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
-                skip_xff_append: false
-                use_remote_address: true
-                xff_num_trusted_hops: 1
+        patch:
+          operation: MERGE
+          value:
+            name: envoy.filters.network.http_connection_manager
+            typed_config:
+              "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
+              skip_xff_append: false
+              use_remote_address: true
+              xff_num_trusted_hops: 1
     EOF
     ```
     You will get an output similar to the following one, after you have configured proxy forward and `X-Forward-For`
@@ -335,4 +335,4 @@ Once you have added the configurations, you may need to restart the IngressGatew
 Run the following command to delete the existing pods using `kubectl`. Kubernetes will spin up new ones automatically after you launch the command:
 ```bash
 kubectl delete pod -n istio-system -l istio=ingressgateway
-```
+```