docs: def _update_github(
              self):
          """commit the changes and push them to github
          """
          self.log.debug('starting the ``_update_github`` method')
  
          from subprocess import Popen, PIPE, STDOUT
          gdir = self.settings["sherlock wiki root"]
          cmd = """cd %(gdir)s && git add --all && git commit -m "x" && git pull origin master && git push origin master""" % locals()
          p = Popen(cmd, stdout=PIPE, stdin=PIPE, shell=True)
          output = p.communicate()[0]
          print output
          self.log.debug('output: %(output)s' % locals())
  
          self.log.debug('completed the ``_update_github`` method')
          return None