update links dmlc

R-package/man/xgboost.Rd

@@ -31,7 +31,7 @@ Commonly used ones are:
   \item \code{nthread} number of thread used in training, if not set, all threads are used
 }
 
-  Look at \code{\link{xgb.train}} for a more complete list of parameters or \url{https://github.com/tqchen/xgboost/wiki/Parameters} for the full list.
+  Look at \code{\link{xgb.train}} for a more complete list of parameters or \url{https://github.com/dmlc/xgboost/wiki/Parameters} for the full list.
 
   See also \code{demo/} for walkthrough example in R.}