Remove references to oslo.sphinx

There were a few left over in the documentation

Change-Id: I87ca3e6c104798a94874916df355b6bdc74c1408

HACKING.rst

@@ -1,11 +1,11 @@
-oslo.sphinx Style Commandments
+oslosphinx Style Commandments
 ===========================
 
 - Step 1: Read the OpenStack Style Commandments
   http://docs.openstack.org/developer/hacking/
 - Step 2: Read on
 
-oslo.sphinx Specific Commandments
+oslosphinx Specific Commandments
 ---------------------------------
 
 None so far

README.rst

@@ -4,5 +4,5 @@ OpenStack Sphinx Extensions
 Theme and extension support for Sphinx documentation from the
 OpenStack project.
 
-To use the theme, add ``'oslo.sphinx'`` to the ``extensions`` list in
+To use the theme, add ``'oslosphinx'`` to the ``extensions`` list in
 the ``conf.py`` file in your Sphinx project.

oslosphinx/intersphinx.py

@@ -18,7 +18,7 @@
 To use this mapping in a project, first add 'sphinx.ext.intersphinx' to
 your extensions list in conf.py. Then::
 
-   from oslo.sphinx import intersphinx
+   from oslosphinx import intersphinx
    intersphinx_mapping = intersphinx.mapping
 
 You'll be able to link to other project's documentation, such as: