Update DESCRIPTION

Added Eline as contributor

DESCRIPTION

@@ -2,7 +2,8 @@ Package: dampack
 Title: Package with useful decision-analytic modeling tools
 Version: 0.0.0.9000
 Authors@R: c(person("Fernando", "Alarid-Escudero", email = "alari006@umn.edu", role = c("aut", "cre")),
-             person("Hawre", "Jalal", email = "hjalal@pitt.edu", role = "ctb"))
+             person("Hawre", "Jalal", email = "hjalal@pitt.edu", role = "ctb"),
+             person("Eline", "Krijkamp", email = "elinekrijkamp@gmail.com", role = "ctb"))
 Description: A pilot package to try, test, improve and continuously develop
     functions to create and analyze decision-analytic models (DAM).
 Depends: