Adding doc.go files for packages
diff --git a/openstack/blockstorage/v1/snapshots/doc.go b/openstack/blockstorage/v1/snapshots/doc.go
new file mode 100644
index 0000000..198f830
--- /dev/null
+++ b/openstack/blockstorage/v1/snapshots/doc.go
@@ -0,0 +1,5 @@
+// Package snapshots provides information and interaction with snapshots in the
+// OpenStack Block Storage service. A snapshot is a point in time copy of the
+// data contained in an external storage volume, and can be controlled
+// programmatically.
+package snapshots