Create branch test1

Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>
modify test1 branch content

Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>
Create master backup branch

Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>

create branch test2 from branch test1

Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>
Create sample file

Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>