Mocked some Python modules when running a Sphinx documentation publishing build.…

Mocked some Python modules when running a Sphinx documentation publishing build. Updated an autoclass class name that changed."

docs/en_us/platform_api/source/conf.py

@@ -154,6 +154,9 @@ MOCK_MODULES = [
     'provider',
     'provider.oauth2',
     'oauth2_provider',
+    'celery.signals',
+    'edx_rest_framework_extensions',
+    'edx_rest_framework_extensions.authentication',
 ]
 
 for mod_name in MOCK_MODULES:

docs/en_us/platform_api/source/user/accounts.rst

@@ -17,7 +17,7 @@ tasks.
 Get and Update a User's Account Information
 **********************************************
 
-.. autoclass:: user_api.accounts.views.AccountView
+.. autoclass:: user_api.accounts.views.AccountViewSet
 
 **Example response showing a user's account information**