Adding simple instructions

docker-compose/development/README.md

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+# Keycloak and MySQL - Development Environment
+
+For running UPS, you need a database and a running Keycloak broker. This folder contains a _development_ environment, that spins up a MySQL 5.x DB and a Keycloak server that imports our demo realm.
+
+## Getting started
+
+To run these servers, simply execute the following command:
+
+```
+docker-compose -f development-env.yaml up
+```
+
+## Running the UPS
+
+To run the UPS `WAR` file, you need to know the IP address of the keycloak broker, you can extract it like:
+
+```
+docker inspect --format '{{ .NetworkSettings.IPAddress }}' name_or_id_of_the_keycloak_container
+```
+
+That value needs to be used when launching the _prepared_ WildFly11 container, like:
+
+```
+/$WF_HOME/bin/standalone.sh -Dups.realm.name=aerogear -Dups.auth.server.url=http://172.17.0.7:8080/auth -b 0.0.0.0 
+
+```
+
+**NOTE:** This is for development only - in production you should not use wildcard URLs!
+
+