Update DESCRIPTION

added myself as contributor

DESCRIPTION

@@ -2,7 +2,8 @@ Package: sergeant
 Title: Tools to Transform and Query Data with 'Apache' 'Drill'
 Version: 0.6.0
 Authors@R: c(person("Bob", "Rudis", email = "[email protected]", role = c("aut", "cre")),
-             person("Edward", "Visel", email = "[email protected]", role = "ctb"))
+             person("Edward", "Visel", email = "[email protected]", role = "ctb"),
+             person("Andy", "Hine", email = "[email protected]", role = "ctb"))
 Description: 'Apache Drill' is a low-latency distributed query engine designed to enable 
     data exploration and 'analytics' on both relational and non-relational 'datastores', 
     scaling to petabytes of data. Methods are provided that enable working with 'Apache'