Update README.md

minor

playbooks/openshift-glusterfs/README.md

@@ -108,4 +108,3 @@ See the documentation in the role's directory for further details.
 The `openshift_hosted` role recognizes `glusterfs` as a possible storage
 backend for a hosted docker registry. It will also, if configured, handle the
 swap of an existing registry's backend storage to a GlusterFS volume.
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