Fixing missing newline in README to render markdown

Signed-off-by: Lucas A. Wilson <luke.wilson@dell.com>

README.md

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 <img src="docs/images/omnia-logo.png" width="500px">
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 #### Ansible playbook-based deployment of Slurm and Kubernetes on Dell EMC PowerEdge servers running an RPM-based Linux OS
 
 Omnia (Latin: all or everything) is a deployment tool to turn Dell EMC PowerEdge servers with RPM-based Linux images into a functioning Slurm/Kubernetes cluster.