Update README.md
Merge pull request #3 from CraryPrimitiveMan/patch-1

Update README.md
[Feature] Add email notification for frontnode session
[FEATURE] Add the D3 demo and README file
[FEATURE] Modify the name
[Feature] Finish email notification code and rename folder
[Feature] Remove the old invalid name folder
Merge pull request #1 from frontnode/master

Update Presentation Demos