dhcrit.bib: Add rooney_shadows_2014
index.md: Add rooney_shadows_2014 and special highlight section
dhcrit.bib: Remove series number from rooney_shadows_2014
dhcrit.bib: Update URL for rooney_shadows_2014
index.md: Add notes re: rooney_shadows_2014

* Add note re: adding items from rooney_shadows_2014 in future
* Add TODO re: updating URL of rooney_shadows_2014 in future