Adds sushy library overview

Change-Id: I4c2d5eb427a7b76a1bfe69551cf0c9937567550d
Story: #2006610
Task: #36858

README.rst

@@ -1,5 +1,5 @@
-About Sushy
+Overview
-===========
+========
 
 Sushy is a Python library to communicate with `Redfish`_ based systems.
 

doc/source/index.rst

@@ -9,6 +9,24 @@ Welcome to Sushy's documentation!
 
 .. include:: ../../README.rst
 
+Features
+========
+
+* Abstraction around the SystemCollection and System resources (Basic
+  server identification and asset information)
+* RAID in Redfish based Systems
+* Redfish Ethernet Interface
+* System mappings
+* System processor
+* Storage management
+* Systems power management (Both soft and hard; Including NMI injection)
+* Changing systems boot device, frequency (Once or permanently) and mode
+  (UEFI or BIOS)
+* Chassis management
+* OEM extention
+* Virtual media management
+* Session Management
+
 Documentation
 =============
 

doc/source/reference/index.rst

@@ -2,31 +2,14 @@
 Sushy Library Reference
 =======================
 
-Features
+Usage
-========
+=====
-
-* Abstraction around the SystemCollection and System resources (Basic
-  server identification and asset information)
-* Systems power management (Both soft and hard; Including NMI injection)
-* Changing systems boot device, frequency (Once or permanently) and mode
-  (UEFI or BIOS)
-* Virtual media management
-* SessionManagement
 
 .. toctree::
    :maxdepth: 2
 
    usage
 
-Missing Features
-================
-
-These are some features that sushy is presently missing.
-
-* Collect sensor data (Health state, temperature, fans etc...)
-* System disk size
-* Serial console
-
 Sushy Python API Reference
 ==========================