Small Mistake in the RadarChart example

[IPrototypeI]

Hello hongyin163,

I found a small mistake in the RadarChart example you forget to import RadarChart.

var { BarChart, CombinedChart }=require('../index.android');

to

var { RadarChart }=require('../index.android');

additional could you add an example of the pie chart and rewrite your setup that the code match to the newer react native version :) ?

Best greeting Jeremy Teichmann.

[hongyin163]

@IPrototypeI ok,I will update it ,thanks!