Create placeholders for documenting release by repository

Change-Id: I0e4af607de9e6aac3424676f344714e0d9e6fde8
diff --git a/howto/release/repositories/voltha-onos/index.rst b/howto/release/repositories/voltha-onos/index.rst
index 0553034..abef329 100644
--- a/howto/release/repositories/voltha-onos/index.rst
+++ b/howto/release/repositories/voltha-onos/index.rst
@@ -4,6 +4,4 @@
 .. toctree::
    :maxdepth: 1
 
-   release
-   dependencies
-   todo
+   resources