rename technical overview to concepts

Author: Gabriel Monroy

docs/gettingstarted/overview.rst docs/gettingstarted/concepts.rstdocs/gettingstarted/overview.rst renamed to docs/gettingstarted/concepts.rst

@@ -1,10 +1,10 @@
-:title: Technical Overview
-:description: -- Technical Overview of the Deis platform
+:title: Concepts
+:description: -- Concepts of the Deis platform
 :keywords: deis, documentation, technical, overview
 
-.. _overview:
+.. _concepts:
 
-Overview
+Concepts
 ========
 
 Deis is an application platform that deploys and scales `Twelve Factor`_ apps 

docs/gettingstarted/index.rst

@@ -11,7 +11,7 @@ Getting Started
 .. toctree::
     :maxdepth: 1
 
-    overview
+    concepts
     installation
     usage    
     tutorial

docs/index.rst

@@ -12,7 +12,7 @@ that is lightweight and flexible.
 
 .. image:: _static/img/deis-graphic.png
 
-If you are new to Deis, you should start with the :ref:`Technical Overview <overview>`.
+If you are new to Deis, you should start with :ref:`Concepts`.
 Once you've completed :ref:`installation` of your private Deis controller,
 explore command-line :ref:`usage` which is elaborated on in the :ref:`tutorial`.