Update Tutorial and Task landing pages.

docs/tasks/index.md

@@ -1,7 +1,9 @@
 ---
 ---
 
-The Tasks section of the Kubernetes documentation is a work in progress
+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.
 
 #### Configuring Pods and Containers
 
@@ -13,6 +15,10 @@ The Tasks section of the Kubernetes documentation is a work in progress
 
 * [Using Port Forwarding to Access Applications in a Cluster](/docs/tasks/access-application-cluster/port-forward-access-application-cluster/)
 
+#### Debugging Applications in a Cluster
+
+* [Determining the Reason for Pod Failure](/docs/tasks/debug-application-cluster/determine-reason-pod-failure/)
+
 #### Accessing the Kubernetes API
 
 * [Using an HTTP Proxy to Access the Kubernetes API](/docs/tasks/access-kubernetes-api/http-proxy-access-api)

docs/tutorials/index.md

@@ -1,7 +1,10 @@
 ---
 ---
 
-The Tutorials section of the Kubernetes documentation is a work in progress.
+This section of the Kubernetes documentation contains tutorials.
+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