Added skeleton structure for the overview section for documentation

source/index.rst

@@ -20,6 +20,7 @@ Content
 .. toctree::
    :maxdepth: 2
 
+   overview/index.rst
    guides/install-guides/index.rst
    guides/admin-guides/index.rst
    developers/index.rst

source/overview/architecture.rst

@@ -0,0 +1,4 @@
+Architecture
+============
+
+https://sourceforge.net/p/xcat/wiki/XCAT_Overview%2C_Architecture%2C_and_Planning/#xcat-architecture

source/overview/features.rst

@@ -0,0 +1,4 @@
+Features
+========
+
+https://sourceforge.net/p/xcat/wiki/XCAT_Overview%2C_Architecture%2C_and_Planning/#overview-of-xcats-features

source/overview/index.rst

@@ -0,0 +1,13 @@
+Overview
+========
+
+xCAT enables you to easily manage large number of servers for any type of techincal computing workload. 
+
+xCAT is known for exceptional scaling, wide variety of supported hardware, operating systems, and virtalization platforms, and complete day0 setup capabilities. 
+
+.. toctree::
+   :maxdepth: 2
+
+   features.rst
+   support_list.rst
+   architecture.rst

source/overview/support_list.rst

@@ -0,0 +1,2 @@
+Supported Hardware and Operating Systems
+========================================