Update README.md to a working example
Update README.md to a working example

The existing README example for an agent is non-working as
it misses a few key pieces around retrieve job information
and such. This script, while simple, is fully working with
the latest version of DCI CS API.

Change-Id: I42a36b630bb1d676723900555834c7d16742df7c

redhat-cip/python-dciclient,redhat-cip/python-dciclient