Add base docker compose instructions to readme (#379)

README.rst

@@ -50,7 +50,12 @@ Quick start
 -----------
 
 The quickest way to get started with FEDn is by trying out the `MNIST
-Keras example <examples/mnist-keras>`__.
+Keras example <examples/mnist-keras>`__. Alternatively, you can start the
+base services along with combiner and reducer as it follows.
+
+.. code-block::
+
+   docker-compose up -d
 
 Distributed deployment
 ======================
@@ -124,4 +129,4 @@ full information).
 .. |Zenseact logo| image:: https://github.com/scaleoutsystems/fedn/raw/master/docs/source/img/logos/zenseact-logo.png
    :width: 15%
 .. |Scania logo| image:: https://github.com/scaleoutsystems/fedn/raw/master/docs/source/img/logos/Scania.png
-   :width: 15%
+   :width: 15%