increase community node number
add introduction framework and contact us
Merge branch 'WebUI' of https://github.com/songsense/Pregelix_Social_Graph into WebUI
introduction version
introduction complete and modify community display
change the description of task 4; Now use Middle Mouse scroll key to switch between id and label
update git from remote
Merge branch 'WebUI' of https://github.com/songsense/Pregelix_Social_Graph into WebUI
add picture
merge from WebUI