Update app.py

app.py

@@ -5,7 +5,7 @@ from pymongo import MongoClient
 
 #Mongo connection
 url = os.environ["MONGO_CONNECTION_STRING"]
-client = MongoClient(url,tlsCerificateKeyFile ="cert.pem")
+client = MongoClient(url,tlsCertificateKeyFile ="cert.pem")
 
 #Fetch database 
 db = client["myapp"]