added install instructions

Author: ksolan

README.md

@@ -16,7 +16,10 @@ The original framework was inspired by [python-nvd3](https://github.com/areski/p
 
 ## Installation
 
--need to work on this-
+python-highcharts supports Python 2.7/3.4 and is available on PyPI. To install:
+```
+pip install python-highcharts
+```
 
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 # Highcharts/Highstock
@@ -581,4 +584,4 @@ chart.save_file()
 * More examples
 * Clean code and put more explanation
 
-Reference: [Highcharts API](http://api.highcharts.com/highcharts)
+Reference: [Highcharts API](http://api.highcharts.com/highcharts)