Add a symlink from DOCUMENTATION.md to README.md so docs are visible.
Add a symlink from DOCUMENTATION.md to README.md so docs are visible.

RewardGateway/puppet-gluster,purpleidea/puppet-gluster,rdo-puppet-modules/puppet-gluster,RewardGateway/puppet-gluster,derjohn/puppet-gluster,purpleidea/puppet-gluster,rdo-puppet-modules/puppet-gluster,pdrakeweb/puppet-gluster,pulecp/puppet-gluster,pdrakeweb/puppet-gluster,derjohn/puppet-gluster,pdrakeweb/puppet-gluster,purpleidea/puppet-gluster,rdo-puppet-modules/puppet-gluster,pulecp/puppet-gluster,RewardGateway/puppet-gluster,pulecp/puppet-gluster,derjohn/puppet-gluster