Add articles to capstone page

Author: lgreski

capstone.md

@@ -10,3 +10,5 @@ layout: page
 ## Course Project
 
 - [n-gram Computations and Computer Capacity](http://bit.ly/2couvxh) Explains the amount of memory required to convert the text files for the course project into n-grams, using the <strong>quanteda</strong> package.
+- [Capstone Strategy](http://bit.ly/2rGcgc6) Describes a general strategy to get through the Capstone: use the simplest approaches possible.
+- [Choosing a Text Analysis Package](http://bit.ly/2qagsPa) Reviews pros and cons of various R packages used for natural language processing, in the context of requirements for the Capstone project.