added link to metricsgraphics tutorial

Author: DocOfi

eda.md

@@ -9,6 +9,7 @@ permalink: /eda/
 - [Emissions Choropleth Maps](https://github.com/BillSeliger/ExData_Plotting2)
 - [Data Analysis using Twitter API and Python](http://blog.impiyush.com/2015/03/data-analysis-using-twitter-api-and.html)
 - [Exploratory Data Analysis using Flexdashboard](http://rpubs.com/DocOfi/350830)
+- [Plotting using Metricsgraphics](http://www.rpubs.com/DocOfi/352947)
 
 ## Comprehensive Notes