fix the dead link &typo error of docker.md

docs/getting-started-guides/docker.md

@@ -42,7 +42,7 @@ Running Kubernetes locally via Docker
 - [Step Three: Run the service proxy](#step-three-run-the-service-proxy)
 - [Test it out](#test-it-out)
 - [Run an application](#run-an-application)
-- [Expose it as a service:](#expose-it-as-a-service)
+- [Expose it as a service](#expose-it-as-a-service)
 - [A note on turning down your cluster](#a-note-on-turning-down-your-cluster)
 
 ### Overview
@@ -128,7 +128,7 @@ On OS/X you will need to set up port forwarding via ssh:
 boot2docker ssh -L8080:localhost:8080
 ```
 
-List the nodes in your cluster by running::
+List the nodes in your cluster by running:
 
 ```sh
 kubectl get nodes
@@ -149,7 +149,7 @@ If you are running different Kubernetes clusters, you may need to specify `-s ht
 kubectl -s http://localhost:8080 run nginx --image=nginx --port=80
 ```
 
-now run `docker ps` you should see nginx running.  You may need to wait a few minutes for the image to get pulled.
+Now run `docker ps` you should see nginx running.  You may need to wait a few minutes for the image to get pulled.
 
 ### Expose it as a service
 
@@ -164,7 +164,7 @@ NAME              CLUSTER_IP       EXTERNAL_IP       PORT(S)       SELECTOR
 nginx             10.0.93.211      <none>            80/TCP        run=nginx              1h
 ```
 
-If `CLUSTER_IP` is blank run the following command to obtain it. Know issue #10836
+If `CLUSTER_IP` is blank run the following command to obtain it. Know issue [#10836](https://github.com/kubernetes/kubernetes/issues/10836)
 
 ```sh
 kubectl get svc nginx