Merge pull request #1770 from dingpinglv/Iss4768_ReleaseV223

Issue #4768: update the AUTHORS.txt
Closed #4768: update the reference of samples and README.mdown
Merge pull request #1775 from dingpinglv/Iss4768_ReleaseV223

Closed #4768: update the reference of samples and README.mdown
Merge pull request #1777 from dingpinglv/master

Closed #4768: update the reference of samples and README.mdown