* Upload the javascript & HTML codes for wordcloud

* A not working version

* A working wordcloud function now

* Added example for wordcloud feature

* Modified error in div statements in examples

* Modify the typo in div of new example

* Better the example for wordcloud

* Add word cloud into README file

* Remove unnecessary files

* Refine the word cloud feature. Added a few arguments

* Modified the example for word cloud

* Update the README file

* Update README File