Create README.md
Merge pull request #1 from JunjieWang/jiabozhu

Create README.md
add new component
Merge pull request #2 from JunjieWang/junjie

add new component
test
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Update recommendation.html
Merge branch 'JiaboZhu'
Merge branch 'master' into donghe
fix the bug for collapse