Updated ENV example

Author: aymenBenadra

.env.example

@@ -7,4 +7,7 @@ DB_NAME = 'YOUR_DB_NAME'
 # JWT Params
 SERVER_ADDRESS = 'YOUR_SERVER_ADDRESS'
 CLIENT_ADDRESS = 'YOUR_CLIENT_ADDRESS'
-JWT_SECRET_KEY = 'YOUR_JWT_SECRET_KEY'
+JWT_SECRET_KEY = 'YOUR_JWT_SECRET_KEY'
+JWT_ALGORITHM = 'HS256'
+JWT_ACCESS_EXP_DELTA_SECONDS = 3600
+JWT_REFRESH_EXP_DELTA_SECONDS = 86400