Update README.md
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`http://localhost:8000` and log in using the default `padmin@vicci.org` account
with password `letmein`.
+#### Configuring XOS for OpenStack
+
If you have your own OpenStack cluster, and you would like to configure XOS to
control it, copy the `admin-openrc.sh` credentials file for your cluster to
this directory. Make sure that OpenStack commands work from the local machine