Roxygenize on build

Change-Id: I7a5b777c0ebc5269a35a0e19cd80a918f6424a89
diff --git a/rderekovecs.Rproj b/rderekovecs.Rproj
index 497f8bf..270314b 100644
--- a/rderekovecs.Rproj
+++ b/rderekovecs.Rproj
@@ -18,3 +18,4 @@
 BuildType: Package
 PackageUseDevtools: Yes
 PackageInstallArgs: --no-multiarch --with-keep.source
+PackageRoxygenize: rd,collate,namespace