Update landing pages for Tasks and Tutorials. (#2634)

_data/tasks.yml

@@ -3,7 +3,7 @@ abstract: "Step-by-step instructions for performing operations with Kubernetes."
 toc:
 - docs/tasks/index.md
 
-- title: Using the Kubectl Command-Line
+- title: Using the kubectl Command-Line
   section:
   - docs/tasks/kubectl/list-all-running-container-images.md
   - docs/tasks/kubectl/get-shell-running-container.md

docs/tasks/index.md

@@ -6,12 +6,18 @@ This section of the Kubernetes documentation contains pages that
 show how to do individual tasks. A task page shows how to do a
 single thing, typically by giving a short sequence of steps.
 
+#### Using the kubectl Command Line
+
+* [Listing Alll Container Images Running in a Cluster](/docs/tasks/kubectl/list-all-running-container-images/)
+* [Getting a Shell to a Running Container](/docs/tasks/kubectl/get-shell-running-container/)
+
 #### Configuring Pods and Containers
 
 * [Defining Environment Variables for a Container](/docs/tasks/configure-pod-container/define-environment-variable-container/)
 * [Defining a Command and Arguments for a Container](/docs/tasks/configure-pod-container/define-command-argument-container/)
 * [Assigning CPU and RAM Resources to a Container](/docs/tasks/configure-pod-container/assign-cpu-ram-container/)
 * [Configuring a Pod to Use a Volume for Storage](/docs/tasks/configure-pod-container/configure-volume-storage/)
+* [Configuring a Pod to Use a PersistentVolume for Storage](/docs/tasks/configure-pod-container/configure-persistent-volume-storage/)
 * [Exposing Pod Information to Containers Through Environment Variables](/docs/tasks/configure-pod-container/environment-variable-expose-pod-information/)
 * [Exposing Pod Information to Containers Using a DownwardAPIVolumeFile](/docs/tasks/configure-pod-container/downward-api-volume-expose-pod-information/)
 * [Distributing Credentials Securely](/docs/tasks/configure-pod-container/distribute-credentials-secure/)

docs/tasks/kubectl/list-all-running-container-images.md

@@ -1,5 +1,5 @@
 ---
-title: Listing all Container images running in the cluster
+title: Listing All Container Images Running in a Cluster
 ---
 
 {% capture overview %}

docs/tutorials/index.md

@@ -7,14 +7,14 @@ A tutorial shows how to accomplish a goal that is larger than a single
 [task](/docs/tasks/). Typically a tutorial has several sections,
 each of which has a sequence of steps.
 
-#### Kubernetes Basics
-
 * [Kubernetes Basics](/docs/tutorials/kubernetes-basics/) is an in-depth interactive tutorial that helps you understand the Kubernetes system and try out some basic Kubernetes features.
 
-#### Stateless Applications
+* [Online Training Course](https://www.udacity.com/course/scalable-microservices-with-kubernetes--ud615)
 
 * [Hello Minikube](/docs/tutorials/stateless-application/hello-minikube/)
 
+#### Stateless Applications
+
 * [Running a Stateless Application Using a Deployment](/docs/tutorials/stateless-application/run-stateless-application-deployment/)
 
 * [Using a Service to Access an Application in a Cluster](/docs/tutorials/stateless-application/expose-external-ip-address-service/)