Small doc cleanup round.

- Changes theme to default instead of nature.
 - Explains in terms of Compute API instead of Rackspace
 - Remove outdated reference to nova-manage command
 - Remove unnecessary whitespace

Change-Id: I43d16cd053af0b4be48450fd638f9d17f9e5c4e7

doc/source/conf.py

@@ -91,7 +91,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  Major themes that come with
 # Sphinx are currently 'default' and 'sphinxdoc'.
-html_theme = 'nature'
+html_theme = 'default'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the

doc/source/index.rst

@@ -6,16 +6,16 @@ This is a client for OpenStack Nova API. There's :doc:`a Python API
 <shell>` (installed as :program:`nova`). Each implements the entire
 OpenStack Nova API.
 
-You'll need an `OpenStack Nova` account, which you can get by using `nova-manage`.
+You'll need credentials for an OpenStack cloud that implements the
+Compute API, such as TryStack, HP, or Rackspace, in order to use the nova client.
 
 .. seealso::
 
-    You may want to read `Rackspace's API guide`__ (PDF) -- the first bit, at
-    least -- to get an idea of the concepts. Rackspace is doing the cloud
-    hosting thing a bit differently from Amazon, and if you get the concepts
+    You may want to read the `OpenStack Compute Developer Guide`__  -- the overview, at
+    least -- to get an idea of the concepts. By understanding the concepts
     this library should make more sense.
 
-    __ http://docs.rackspacecloud.com/servers/api/cs-devguide-latest.pdf
+    __ http://docs.openstack.org/api/openstack-compute/2/content/
 
 Contents:
 
@@ -42,4 +42,3 @@ Indices and tables
 * :ref:`genindex`
 * :ref:`modindex`
 * :ref:`search`
-