docs: Change toctree order

Change-Id: I121f41b54afc10225f90ebb0a98ad4e444058bfe
diff --git a/docs/index.rst b/docs/index.rst
index 5c9ba33..e8d4a7c 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -30,14 +30,14 @@
    :maxdepth: 3
 
    RELEASE-NOTES
-   INSTALL
    GETTING-STARTED
+   INSTALL
    ROUTER-CONFIG
    SECURITY-CONFIG
    manpages
 
--  :doc:`INSTALL`
 -  :doc:`GETTING-STARTED`
+-  :doc:`INSTALL`
 -  :doc:`ROUTER-CONFIG`
 -  :doc:`SECURITY-CONFIG`
 -  :doc:`RELEASE-NOTES`