fix typo

Author: amirreza8002

docs/configure/advanced_configurations.md

@@ -68,7 +68,7 @@ just add these settings to your settings.py
 
 ```python
 SESSION_ENGINE = "django.contrib.sessions.backends.cache"
-SESSION_CACHE_ALIAS = "default
+SESSION_CACHE_ALIAS = "default"
 ```
 
 ## Configure the client