Merge pull request kubernetes#1995 from king-julien/master

More Description: use the minikube's built-in Docker daemon

docs/getting-started-guides/minikube.md

@@ -116,7 +116,7 @@ plugins, if required.
 
 ### Reusing the Docker daemon
 
-When using a single VM of kubernetes its really handy to reuse the Docker daemon inside the VM; as this means you don't have to build on your host machine and push the image into a docker registry - you can just build inside the same docker daemon as minikube which speeds up local experiments.
+When using a single VM of kubernetes, it's really handy to reuse the minikube's built-in Docker daemon; as this means you don't have to build a docker registry on your host machine and push the image into it - you can just build inside the same docker daemon as minikube which speeds up local experiments. Just make sure you tag your Docker image with something other than 'latest' and use that tag while you pull the image. Otherwise, if you do not specify version of your image, it will be assumed as `:latest`, with pull image policy of `Always` correspondingly, which may eventually result in `ErrImagePull` as you may not have any versions of your Docker image out there in the default docker registry (usually DockerHub) yet.
 
 To be able to work with the docker daemon on your mac/linux host use the [docker-env command](./docs/minikube_docker-env.md) in your shell: