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When I visit http://specs.openstack.org/openstack/trove-specs/, nothing shows in `Ocata approved specs` section, but there are some *.rst files in Github. So try to display ocata approved specs. And add 'Pike approved specs' section and pike folder. Delete sample.rst in Ocata. Change-Id: Ia828e648f23d263a45e076a4f2387126b4e7f753 Signed-off-by: Fan Zhang <zh.f@outlook.com>