Add user ZhangHongtao to default_data.json
Add user ZhangHongtao to default_data.json

Change-Id: Ib2d7b4a73a709e6d5a699796cbd96b3a747258c6

openstack/stackalytics,Mirantis/stackalytics,0xf2/stackalytics,stackforge/stackalytics,0xf2/stackalytics,0xf2/stackalytics,openstack/stackalytics,openstack/stackalytics,0xf2/stackalytics,Mirantis/stackalytics,stackforge/stackalytics,openstack/stackalytics,stackforge/stackalytics,Mirantis/stackalytics