Update README.md

Included 
require(rCharts) 
in the "install" section of the example.

Similar to http://ramnathv.github.io/rCharts/
highcharts: update examples.R
Initial Commit
Merge branch 'master' of github.com:ramnathv/rCharts
Merge remote-tracking branch 'ramnathv/master' into hPlot
add toGeoJSON as utility function.
Merge pull request #122 from timelyportfolio/master

add license file for each library and also add license.md and a license section to Readme.md
Merge pull request #83 from mege/patch-1

Update README.md
Merge branch 'master' of github.com:ramnathv/rCharts
minor correction in README.
update version.
remove runExample as it conflicts with shiny.
clarify licenses more clearly.
Merge remote-tracking branch 'ramnathv/master' into hPlot
highcharts: add list support in series and colors methods
highcharts: fix colors method
highcharts: fix replace option in series
highcharts: simplify code a bit
update readme
update readme