Merge pull request DataScienceSpecialization#82 from DanieleP/patch-1

Tutorial for those struggling with PA2

Author: seankross

rprog.md

@@ -8,6 +8,7 @@ permalink: /rprog/
 
 - [Tutorial for those struggling with Programming Assignment 1](https://github.com/derekfranks/practice_assignment)  
 - [PA1-test: `testthat`, Unit Tests for Programming Assignment 1](https://github.com/cbryant1000/pa1test)
+- [Tutorial for those struggling with Programming Assignment 2](https://github.com/DanieleP/PA2-clarifying_instructions)
 - [PA3-test: `testthat`, Unit Tests for Programming Assignment 3](https://github.com/cbryant1000/pa3test)
 
 
@@ -21,4 +22,4 @@ permalink: /rprog/
 
 ## Comprehensive Notes
 
-- Complete notes for [R Programming](http://sux13.github.io/DataScienceSpCourseNotes/)
+- Complete notes for [R Programming](http://sux13.github.io/DataScienceSpCourseNotes/)