add spelling extension

Author: dhellmann

docs/sphinx/conf.py

@@ -24,7 +24,9 @@
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = [ 'sphinxcontrib.bitbucket' ]
+extensions = [ 'sphinxcontrib.bitbucket',
+               'sphinxcontrib.spelling',
+             ]
 
 bitbucket_project_url = 'http://bitbucket.org/dhellmann/virtualenvwrapper/'