reflow lines

docs/README.md

@@ -10,20 +10,26 @@ http://releases.k8s.io/vX.Y.Z/docs.
    * [releases.k8s.io/v0.18.1](http://releases.k8s.io/v0.18.1/docs)
    * [releases.k8s.io/v0.17.1](http://releases.k8s.io/v0.17.1/docs)
 
-* The [User's guide](user-guide.md) is for anyone who wants to run programs and services on an existing Kubernetes cluster.
+* The [User's guide](user-guide.md) is for anyone who wants to run programs and
+  services on an existing Kubernetes cluster.
 
-* The [Cluster Admin's guide](cluster-admin-guide.md) is for anyone setting up a Kubernetes cluster or administering it.
+* The [Cluster Admin's guide](cluster-admin-guide.md) is for anyone setting up
+  a Kubernetes cluster or administering it.
 
-* The [Developer guide](developer-guide.md) is for anyone wanting to write programs that access the kubernetes API,
- write plugins or extensions, or modify the core code of kubernetes.
+* The [Developer guide](developer-guide.md) is for anyone wanting to write
+  programs that access the kubernetes API, write plugins or extensions, or
+  modify the core code of kubernetes.
 
-* The [Kubectl Command Line Interface](kubectl.md) is a detailed reference on the `kubectl` CLI.
+* The [Kubectl Command Line Interface](kubectl.md) is a detailed reference on
+  the `kubectl` CLI.
 
-* The [API object documentation](http://kubernetes.io/third_party/swagger-ui/) is a detailed description of all fields found in core API objects.
+* The [API object documentation](http://kubernetes.io/third_party/swagger-ui/)
+  is a detailed description of all fields found in core API objects.
 
 * An overview of the [Design of Kubernetes](design)
 
-* There are example files and walkthroughs in the [examples](../examples) folder.
+* There are example files and walkthroughs in the [examples](../examples)
+  folder.
 
 
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