Merge pull request #2 from yunfeng1983/master

update test.md from yunfeng
Revert "update test.md from yunfeng"
Merge pull request #3 from VoiceAddrBook/revert-2-master

Revert "update test.md from yunfeng"
 update from zhoufeng
Merge pull request #5 from yunfeng1983/patch-1

approve update from zhoufeng from administrator
Merge pull request #1 from VoiceAddrBook/master

cancel difference