Add Documentation for registry addon

This commit adds documentation on how to use minikube addon registry.
Related to kubernetes#4341 and kubernetes#4529
This addresses kubernetes#4531 and kubernetes#4242

Author: kumarom

docs/reusing_the_docker_daemon.md

@@ -14,6 +14,12 @@ You should now be able to use docker on the command line on your host mac/linux
 docker ps
 ```
 
+Docker may report following forbidden error if you are using http proxy and the `$(minikube ip)` is not added to `no_proxy`/`NO_PROXY`:
+
+```shell
+error during connect: Get https://192.168.39.98:2376/v1.39/containers/json: Forbidden
+```
+
 On Centos 7, docker may report the following error:
 
 ```shell
@@ -31,3 +37,29 @@ The fix is to update /etc/sysconfig/docker to ensure that minikube's environment
 ```
 
 Remember to turn off the _imagePullPolicy:Always_, as otherwise Kubernetes won't use images you built locally.
+
+Another approach is to enable minikube registry addons and then push images directly into registry. Steps for this approach is as follows:
+
+Enable minikube registry addon:
+
+```shell
+minikube addons enable registry
+```
+
+Build docker image and tag it appropriately:
+
+```shell
+docker build --tag $(minikube ip):5000/test-img .
+```
+
+Push docker image to minikube registry:
+
+```shell
+docker push $(minikube ip):5000/test-img
+```
+
+Now run it in minikube:
+
+```shell
+kubectl run test-img --image=$(minikube ip):5000/test-img
+```