Added quick reference with clickable svg.

docs/concepts.rst

@@ -31,7 +31,7 @@ Detailed class relationships
 The following diagram shows a typical provider object graph and the relationship
 between services.
 
-.. image:: images/object_relationships_detailed.svg
+.. figure:: images/object_relationships_detailed.svg
 
 Some services are nested. For example, to access the instance service, you can
 use `provider.compute.instances`. Similarly, to get a list of all instances,

docs/index.rst

@@ -1,4 +1,4 @@
-	.. cloudbridge documentation master file, created by
+.. cloudbridge documentation master file, created by
    sphinx-quickstart on Sat Oct 10 03:17:52 2015.
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
@@ -26,6 +26,16 @@ look like the following.
 In the example above, the AWS_ACCESS_KEY and AWS_SECRET_KEY environment variables
 must be set to your cloud credentials.
 
+Quick Reference
+---------------
+
+The following object graph shows how to access various provider services, and the resource
+that they return. Click on any object to drill down into its details.
+
+.. raw:: html
+
+   <object data="_images/object_relationships_detailed.svg" type="image/svg+xml"></object>
+
 Installation
 ------------