Update according DOCS

Each path use a index.rst file to include all the rst files:
1). Add missing index.rst
2). Rename some file to index.rst
3). Ude a index.rst to include all the community labs(currently all
    the labs are at the top level)

Change-Id: I9bb6903328a8d445121982dd662df9eeceb23ff5
Signed-off-by: Julien <zhang.jun3g@zte.com.cn>

1 files changed, 1 insertions, 0 deletions

diff --git a/docs/lab-description/templates.rst b/docs/lab-description/index.rst
index 33cc5559..1dfacc8a 100644
--- a/docs/lab-description/templates.rst
+++ b/docs/lab-description/index.rst
@@ -21,6 +21,7 @@ This is the "POD inventory" common format file.
 
 
 .. toctree::
+   :maxdepth: 2
 
    ./lab_description.rst
    ./pod_description.rst