Fix broken links (#1692)

content/docs/setup/kubernetes/helm-install/index.md

@@ -36,7 +36,7 @@ recommended.
       (requires Kubernetes >=1.9.0):
 
         {{< text bash >}}
-        $ helm template @install/kubernetes/helm/istio@ --name istio --namespace istio-system > $HOME/istio.yaml
+        $ helm template install/kubernetes/helm/istio --name istio --namespace istio-system > $HOME/istio.yaml
         {{< /text >}}
 
     * Without the sidecar injection webhook:

content/docs/tasks/security/mutual-tls/index.md

@@ -15,15 +15,9 @@ Through this task, you will learn how to:
 
 This task assumes you have a Kubernetes cluster:
 
-* Installed Istio with global mutual TLS enabled:
+* Installed Istio with global mutual TLS enabled using Helm:
 
-    {{< text bash >}}
-    $ kubectl apply -f @install/kubernetes/istio-demo-auth.yaml@
-    {{< /text >}}
-
-    _**OR**_
-
-    Using [Helm](/docs/setup/kubernetes/helm-install/) with `global.mtls.enabled` to `true`.
+    Use [Helm](/docs/setup/kubernetes/helm-install/) with `global.mtls.enabled` to `true`.
 
 > Starting with Istio 0.7, you can use [authentication policy](/docs/concepts/security/authn-policy/) to configure mutual TLS for all/selected services in a namespace
 (repeated for all namespaces to get global setting). See the [authentication policy task](/docs/tasks/security/authn-policy/)

content_zh/blog/2018/soft-multitenancy/index.md

@@ -33,8 +33,8 @@ $ cat istio.yaml | sed s/istio-system/istio-system1/g > istio-system1.yaml
 Istio Yaml 文件包含了 Istio 控制面的部署细节，包含组成控制面的 Pod（Mixer、Pilot、Ingress 以及 CA）。部署这两个控制面 Yaml 文件：
 
 {{< text bash >}}
-$ kubectl apply -f @install/kubernetes/istio.yaml@
-$ kubectl apply -f @install/kubernetes/istio-system1.yaml@
+$ kubectl apply -f install/kubernetes/istio.yaml
+$ kubectl apply -f install/kubernetes/istio-system1.yaml
 {{< /text >}}
 
 会在两个命名空间生成两个 Istio 控制面