Adding doc.go files for packages
diff --git a/rackspace/objectstorage/v1/bulk/doc.go b/rackspace/objectstorage/v1/bulk/doc.go
new file mode 100644
index 0000000..9c89e22
--- /dev/null
+++ b/rackspace/objectstorage/v1/bulk/doc.go
@@ -0,0 +1,3 @@
+// Package bulk provides functionality for working with bulk operations in the
+// Rackspace Cloud Files service.
+package bulk