Revert "Build a more organized doc structure"

Our philosophy document is one of our most important documents
in he documentation repository.  I appreciate in general the notion
of reorganizing many of our docs, but this one should be left alone
and possibly protected by a roll-call vote in the future.

This reverts commit aa517c4b.

Change-Id: Ic17861e823095a1891ac25ddaf429b66e352e30e

doc/deployment-philosophy/templating.rst → doc/deployment-philosophy.rst

-.. _templating:
+.. _deployment-philosophy:
 
-================
-Kolla Templating
-================
+=============================
+Kolla's Deployment Philosophy
+=============================
+
+Overview
+========
+
+Kolla has an objective to replace the inflexible, painful, resource-intensive
+deployment process of OpenStack with a flexible, painless, inexpensive
+deployment process. Often to deploy OpenStack at the 100+ node scale small
+businesses may require means building a team of OpenStack professionals to
+maintain and manage the OpenStack deployment. Finding people experienced in
+OpenStack deployment is very difficult and expensive, resulting in a big
+barrier for OpenStack adoption. Kolla seeks to remedy this set of problems by
+simplifying the deployment process while enabling flexible deployment models.
+
+Kolla is a highly opinionated deployment tool out of the box. This permits
+Kolla to be deployable with the simple configuration of three key/value pairs.
+As an operator's experience with OpenStack grows and the desire to customize
+OpenStack services increases, Kolla offers full capability to override every
+OpenStack service configuration option in the deployment.
 
 Why not Template Customization?
 ===============================

doc/deployment-philosophy/deployment-philosophy.rst

-.. _deployment-philosophy:
-
-=============================
-Kolla's Deployment Philosophy
-=============================
-
-Overview
-========
-
-Kolla has an objective to replace the inflexible, painful, resource-intensive
-deployment process of OpenStack with a flexible, painless, inexpensive
-deployment process. Often to deploy OpenStack at the 100+ node scale small
-businesses may require means building a team of OpenStack professionals to
-maintain and manage the OpenStack deployment. Finding people experienced in
-OpenStack deployment is very difficult and expensive, resulting in a big
-barrier for OpenStack adoption. Kolla seeks to remedy this set of problems by
-simplifying the deployment process but enabling flexible deployment models.
-
-Kolla is a highly opinionated deployment tool out of the box. This permits
-Kolla to be deployable with the simple configuration of three key/value pairs.
-As an operator's experience with OpenStack grows and the desire to customize
-OpenStack services increases, Kolla offers full capability to override every
-OpenStack service configuration option in the deployment.
-
-Templating and Customization Philosophy
-=======================================
-
-To read up on the Kolla communities template philosphy go to the
-:doc:`templating` doc.
-
-Architecture
-============
-
-#TODO: Link an image showing the architecture
-
-
-.. toctree::
-   :hidden:
-
-   templating

doc/index.rst

@@ -34,14 +34,14 @@ Kolla Overview
 ==============
 
 .. toctree::
-   :maxdepth: 2
+   :maxdepth: 1
 
-   deployment-philosophy/deployment-philosophy
-   architecture-guide
+   deployment-philosophy
    quickstart
    multinode
    image-building
    advanced-configuration
+   architecture-guide
    operating-kolla
    security