Reworded description of the environment variables

Removed the "test now..." b/c the code example is only about inspection
of env-variables.
Test follows in the next section.

Docker-DCO-1.1-Signed-off-by: Matthias Kühnle <git.nivoc@neverbox.com> (github: float64)

docs/sources/examples/running_redis_service.rst

@@ -67,9 +67,8 @@ Once inside our freshly created container we need to install Redis to get the
     apt-get -y install redis-server
     service redis-server stop
 
-Now we can test the connection. Firstly, let's look at the available environmental 
-variables in our web application container that Docker has setup for us. We can use these to get the IP and port 
-of our ``redis`` container.
+Docker sets some environment variables in our web application container. 
+Let's inspect them with the ``env`` command.
 
 .. code-block:: bash