config update githubpages problem on zindows

doc/source/conf.py

@@ -41,8 +41,7 @@ extensions = ['matplotlib.sphinxext.only_directives',
               'sphinx.ext.todo',
               'sphinx.ext.coverage',
               'sphinx.ext.mathjax',
-              'sphinx.ext.viewcode',
-              'sphinx.ext.githubpages']
+              'sphinx.ext.viewcode']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']