Fix a few errors.

_docs/tasks/istio-auth.md

@@ -66,7 +66,7 @@ The following command creates  namespace *istio-system* and deploys CA into the
 kubectl apply -f ./kubernetes/istio-auth/istio-cluster-ca.yaml
 ```
 
-#### <a name="istioconfig"></a>Enabling Istio Auth in Istio config
+#### Enabling Istio Auth in Istio config
 
 The following command uncomments the line *authPolicy: MUTUAL_TLS* in the file *kubernetes/istio-X.yaml*,
 and backs up the original file as *istio-X.yaml.bak*

_docs/tasks/request-routing.md

@@ -35,8 +35,10 @@ route requests to all available versions of a service in a random fashion.
 
    You can display the routes that are defined with the following command:
 
-   ```yaml
+   ```bash
    istioctl get route-rules -o yaml
+   ```
+   ```yaml
    type: route-rule
    name: ratings-default
    namespace: default

_layouts/base.html

@@ -1,5 +1,5 @@
 ---
-#layout: compress
+layout: compress
 ---
 {% include home.html %}