HBASE-22173 Update doc on integration tests
HBASE-22173 Update doc on integration tests

Signed-off-by: Peter Somogyi <dfe29050aae9e16fc6784bf10581623b02587478@apache.org>

ndimiduk/hbase,francisliu/hbase,ultratendency/hbase,apurtell/hbase,Apache9/hbase,apurtell/hbase,francisliu/hbase,ultratendency/hbase,Apache9/hbase,ndimiduk/hbase,mahak/hbase,mahak/hbase,apurtell/hbase,apurtell/hbase,francisliu/hbase,apurtell/hbase,francisliu/hbase,ndimiduk/hbase,francisliu/hbase,francisliu/hbase,ultratendency/hbase,ChinmaySKulkarni/hbase,mahak/hbase,mahak/hbase,Apache9/hbase,francisliu/hbase,ultratendency/hbase,bijugs/hbase,ChinmaySKulkarni/hbase,ultratendency/hbase,bijugs/hbase,ndimiduk/hbase,bijugs/hbase,Eshcar/hbase,Apache9/hbase,ndimiduk/hbase,francisliu/hbase,bijugs/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,mahak/hbase,apurtell/hbase,mahak/hbase,Eshcar/hbase,Apache9/hbase,mahak/hbase,francisliu/hbase,ndimiduk/hbase,ChinmaySKulkarni/hbase,ndimiduk/hbase,Apache9/hbase,ultratendency/hbase,Apache9/hbase,apurtell/hbase,mahak/hbase,ChinmaySKulkarni/hbase,apurtell/hbase,bijugs/hbase,ndimiduk/hbase,Eshcar/hbase,ultratendency/hbase,Eshcar/hbase,Eshcar/hbase,bijugs/hbase,bijugs/hbase,Apache9/hbase,apurtell/hbase,ChinmaySKulkarni/hbase,bijugs/hbase,ultratendency/hbase,ChinmaySKulkarni/hbase,ChinmaySKulkarni/hbase,Apache9/hbase,ChinmaySKulkarni/hbase,Eshcar/hbase,Eshcar/hbase,Apache9/hbase,mahak/hbase,mahak/hbase,bijugs/hbase,ndimiduk/hbase,ultratendency/hbase,ndimiduk/hbase,francisliu/hbase,Eshcar/hbase,bijugs/hbase,ChinmaySKulkarni/hbase,Eshcar/hbase,Eshcar/hbase,ultratendency/hbase