Fix docs in README.rst

The current README is outdated regarding service endpoint creation.
This patch updates the doc to use the latest openstack command line
options for this job. Also port-based keystone addresses are giving way
to url based solution. That is updated as well.

Change-Id: If2e9264e3592088ef6cba54e28353fc1777c75a5

README.rst

@@ -111,7 +111,17 @@ an OpenStack environment.
 
     $ oslo-config-generator \
       --config-file tools/config/config-generator.mistral.conf \
-      --output-file /etc/mistral/mistral.conf
+      --output-file etc/mistral.conf.sample
+
+#. Copy service configuration files::
+
+    $ sudo mkdir /etc/mistral
+    $ sudo chown `whoami` /etc/mistral
+    $ cp etc/event_definitionas.yml.sample /etc/mistral/event_definitions.yml
+    $ cp etc/logging.conf.sample /etc/mistral/logging.conf
+    $ cp etc/policy.json /etc/mistral/policy.json
+    $ cp etc/wf_trace_logging.conf.sample /etc/mistral/wf_trace_logging.conf
+    $ cp etc/mistral.conf.sample /etc/mistral/mistral.conf
 
 #. Edit file ``/etc/mistral/mistral.conf`` according to your setup. Pay attention to
    the following sections and options::
@@ -135,8 +145,8 @@ an OpenStack environment.
 #. Provide valid keystone auth properties::
 
     [keystone_authtoken]
-    auth_uri = http://<Keystone-host>:5000/v3
-    identity_uri = http://<Keystone-host:35357/
+    auth_uri = http://<Keystone-host>/identity_v2_admin/v3
+    identity_uri = http://<Keystone-host/identity_v2_admin
     auth_version = v3
     admin_user = <user>
     admin_password = <password>
@@ -146,11 +156,9 @@ an OpenStack environment.
 
     $ MISTRAL_URL="http://[host]:[port]/v2"
     $ openstack service create --name mistral workflowv2
-    $ openstack endpoint create \
-        --publicurl $MISTRAL_URL \
-        --adminurl $MISTRAL_URL \
-        --internalurl $MISTRAL_URL \
-        mistral
+    $ openstack endpoint create mistral public $MISTRAL_URL
+    $ openstack endpoint create mistral internal $MISTRAL_URL
+    $ openstack endpoint create mistral admin $MISTRAL_URL
 
 #. Update the ``mistral/actions/openstack/mapping.json`` file which contains
    all available OpenStack actions, according to the specific client versions