general info -> info and citation commented out

_includes/sc/intro.html

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   Participants will be encouraged to help one another
   and to apply what they have learned to their own research problems.
   
-</p> -->
+</p> 
 <p align="center">
   <em>
     For more information on what we teach and why,
     please see our paper
     "<a href="http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1001745">Best Practices for Scientific Computing</a>".
   </em>
-</p>
+</p>-->