HBASE-24566 Add 2.3.0 to the downloads page (#2061)
HBASE-24566 Add 2.3.0 to the downloads page (#2061)

Signed-off-by: Sean Busbey <5c0191c5bda2836af1cb87878694cfbf1db676c8@apache.org>
Signed-off-by: Viraj Jasani <0f008b677517e222a5b140e7cfedb6aed7df6c3b@apache.org>
mahak/hbase,Apache9/hbase,apurtell/hbase,mahak/hbase,apurtell/hbase,apurtell/hbase,mahak/hbase,Apache9/hbase,mahak/hbase,mahak/hbase,mahak/hbase,apurtell/hbase,Apache9/hbase,Apache9/hbase,ndimiduk/hbase,Apache9/hbase,mahak/hbase,Apache9/hbase,ndimiduk/hbase,ndimiduk/hbase,Apache9/hbase,apurtell/hbase,apurtell/hbase,apurtell/hbase,ndimiduk/hbase,ndimiduk/hbase,ndimiduk/hbase,mahak/hbase,apurtell/hbase,ndimiduk/hbase,Apache9/hbase,mahak/hbase,apurtell/hbase,Apache9/hbase,mahak/hbase,apurtell/hbase,ndimiduk/hbase,Apache9/hbase,ndimiduk/hbase,ndimiduk/hbase