Merge pull request #3 from jeromejsyang/master

Update README.md
Merge pull request #4 from jeromejsyang/master

add content for unique value renderer
Merge pull request #5 from jeromejsyang/master

Update function conversion sample
Merge pull request #7 from jeromejsyang/master

Update index.html
Merge pull request #9 from jeromejsyang/master

changes for post #3
Merge pull request #11 from jeromejsyang/master

changes for post #4
add new code and thumbnails for post #5
modify readme.md
Merge pull request #11 from jeromejsyang/master

sync