Adding doc.go files for packages
diff --git a/rackspace/identity/v2/tenants/doc.go b/rackspace/identity/v2/tenants/doc.go
new file mode 100644
index 0000000..c1825c2
--- /dev/null
+++ b/rackspace/identity/v2/tenants/doc.go
@@ -0,0 +1,3 @@
+// Package tenants provides information and interaction with the tenant
+// API resource for the Rackspace Identity service.
+package tenants