Update method_summary

Author: mdmintz

help_docs/method_summary.md

@@ -209,6 +209,8 @@ self.assert_equal(first, second, msg=None)
 
 self.assert_not_equal(first, second, msg=None)
 
+self.assert_title(title)
+
 self.assert_no_js_errors()
 
 self.get_google_auth_password(totp_key=None)