Update readme

Author: Grokzen

README.md

@@ -2,31 +2,27 @@
 
 Docker image with redis built and installed from source.
 
+The main usage for this container is to test redis cluster code. For example in https://github.com/Grokzen/redis-py-cluster repo.
+
 The cluster is 6 redis instances running with 3 master & 3 slaves, one slave for each master. They run on ports 7000 to 7005.
 
 It also contains 2 standalone instances that is not part of the cluster. They are running on port 7006 & 7007
 
 It will allways build the latest commit in the 3.0 branch  `https://github.com/antirez/redis/tree/3.0`
 
-
-
-# Setup Docker
-
-How to setup docker and start the cluster image.
-
-Install `docker` on your system. 1.0 or higher is recommended. Instructions can be found at http://docs.docker.com/en/latest/installation/. It is also reccomended to add the current user to `docker` system group to remove the need to add sudo to each docker call.
+This image requires `Docker` above version 1.0
 
 
 
 # Usage
 
 If you want to use `docker-compose (fig)` please read next section.
 
-Download the latest build from docker hub with `docker pull grokzen/redis-cluster`
+Either download the latest build from docker hub with `docker pull grokzen/redis-cluster`
 
-To build the image run either `make build` or `make rebuild`. It will be built to the image name `grokzen/redis-cluster`.
+Or to build the image, use either `make build` or `make rebuild`. It will be built to the image name `grokzen/redis-cluster`.
 
-To start the image run `make run`. It will be started in the background. To gain access to the running image you can get a bash session by running `make bash`.
+To start the image use `make run`. It will be started in the background. To gain access to the running image you can get a bash session by running `make bash`.
 
 Test to connect to the cluster with `redis-cli -p 7000`. If you do not want to install a redis server on your host to get access to `redis-cli` you can run a `exec` command to run it inside the docker container. It can be done with `docker exec -it <ContainerID> /redis/src/redis-cli -p 7000` where `<ContainerID>` can be found inside the CID file at `/tmp/grokzen-redis-cluster.cid` or via `docker ps`.