Update app.py

app.py

@@ -7,7 +7,7 @@ from difflib import SequenceMatcher
 import string
 
 class AIChatbot:
-    def __init__(self, database_url: str = "https://database-dhe2.onrender.com"):
+    def __init__(self, database_url: str = "https://database-1-xzm0.onrender.com"):
         self.database_url = database_url
         self.conversation_history = []