Update DESCRIPTION

Add @dmurdoch to author's list
diff --git a/DESCRIPTION b/DESCRIPTION
index 478b688..6292434 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -15,7 +15,8 @@
     person('Yoni', 'Sidi', role = 'ctb'), 
     person('Brian', 'Salzer', role = 'ctb'),
     person('George', 'Gui', role = 'ctb'),
-    person('Yeliang', 'Fan', role = 'ctb')
+    person('Yeliang', 'Fan', role = 'ctb'),
+    person('Duncan', 'Murdoch, role = 'ctb')
     )
 Description: Build complex HTML or 'LaTeX' tables using 'kable()' from 'knitr' 
     and the piping syntax from 'magrittr'. Function 'kable()' is a light weight