add "cre" to sg

Author: sbgraves237

DESCRIPTION

@@ -8,7 +8,7 @@ Authors@R: c(person(given = "Yves",
                   email = "yves.croissant@let.ish-lyon.cnrs.fr"), 
              person(given = "Spencer", 
                   family = "Graves", 
-                  role = c("aut", "cre", ctb"), 
+                  role = c("aut", "cre", "ctb"), 
                   email = "spencer.graves@effectivedefense.org"))
 Author: Yves Croissant [aut, cre], Spencer Graves [aut, ctb]
 Maintainer: Spencer Graves <spencer.graves@effectivedefense.org>