hi, this is a test for git

1. leochenyu/shots is forked from stding/shots
2. I will working on leochenyu/shots.
3. change sets between leochenyu/shots and stding/shots will be checked in/out by 'pull request'.

PS: you can add me as 'Collaborators', so I can directly work in stding/shots, my git id is 'chen_yu_nanjing@163.com', thx